WaveShare
Wide range audio sampling rate, headphone and speaker signal output at the same time.
The Pico-Audio is an audio expansion module designed for Raspberry Pi Pico, which incorporates CS4344 low power stereo decoder, and uses I2S bus for transmitting audio signal. It supports wide range audio sampling rate, allows headphone and speaker signal output at the same time.
- Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series
- Standard 3.5mm audio jack, for connecting external headphone
- Dual channels speaker headers, for direct driving speakers
- 8~384000Hz audio sampling rate
- Stereo sound effect output
- Using 3-wire I2S, effectively reducing EMI
- Comes with development resources and manual (Raspberry Pi Pico audio play code, sound card code)
| Operating voltage | 5V | Logic level | 3.3V |
|---|---|---|---|
| Audio decoder | CS4344 | Audio bus | I2S |
| DAC SNR | 106 dB | Speaker driving | 2.6W/channel (4Ω BTL) |
Raspberry Pi Pico header compatibility
onboard female pin header for direct attaching to Raspberry Pi Pico,
male pin header for stacking other modules
Raspberry Pi Pico is NOT included.
What's On Board
- Dual channels 4-wire speaker header
- SMD adjustable resistor
speaker output volume adjustment - Audio decoder output observing points
- 3.5mm standard headphone jack
- RT9193-33
3.3V linear regulator
- CS4344
audio decoder, 3-wire I2S bus - APA2068
audio power amplifier - Raspberry Pi Pico header
for connecting Raspberry Pi Pico, stackable design

Example usage

Speakers, Pico and USB cable are not included
Outline dimensions

What's in the box?
1 x Pico-Audio module
Resources
Allows multiple input devices to share one HDMI screen, high-resolution and smooth
| Input Interface | HDMI x 3 |
|---|---|
| Support 4K/2K@30Hz and 4K/2K (YCbCr420) @60Hz resolution | |
| Built-in input Equalizer, can automatically adjust the input signal | |
| Output Interface | HDMI x 1 |
| Built-in output drive regulator, can automatically adjust the output signal amplitude | |
| Interface Standard | Support HDMI 1.4b and DVI1.0 standard |
| Transfer Speed | Up to 3Gbps |
Allows Multiple Input Devices To Share One HDMI Screen,
such as Raspberry Pi, PC, Smartphone...
Support 4K/2K@30Hz and 4K/2K (YCbCr420)@60Hz resolution
Clearer & Smoother image, No Delay In Sound
Built-in Adjustment Function for Input and Output, Free to Transmit With Different Cables
Data Transfer Speed Up To 3Gbps
No additional Power Supply required, Plug And Play With HDMI Cable
Almost as small as a credit card, easy to carry, space-efficient

What's in the box?
1 x HDMI switch
Low power, wide viewing angle, paper-like effect without electricity
Ideal for price tags, shelf labels, industrial instruments...
- Advanced Color ePaper (ACeP) technology, supports 7-Color display
- No backlight, keeps displaying last content for a long time even when power down
- Ultra low power consumption, basically power is only required for refreshing
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
- SPI interface, for connecting with controller boards like Raspberry Pi/Jetson Nano/Arduino/STM32, etc.
- Onboard voltage translator, compatible with 3.3V/5V MCUs
- Comes with development resources and manual(driver board schematic, examples for Raspberry Pi/Arduino/STM32)
Specifications
| operating voltage | 3.3V/5V | display color | 7-Color |
|---|---|---|---|
| interface | 3-wire SPI, 4-wire SPI | grey scale | 2 |
| outline dimensions | 170.2 × 111.2mm | full refresh time | 35s |
| display size | 160 × 96mm | refresh power | <49.4mW (typ.) |
| DOT PITCH | 0.2 × 0.2 mm | standby current | <0.01uA (almost none) |
| RESOLUTION | 800×480 pixels | viewing angle | >170° |
Advantages of EINK
E-paper display utilizes microcapsule electrophoretic technology for displaying, the principle is: charged particles suspended in clear fluid will move to sides of microcapsule when electric field is applied, making the microcapsule become visible by reflecting ambient light, just as traditional printed paper.
E-paper display will clearly display images/texts under lamplight or natural light, requires no backlight, and features nearly up to 180° viewing angle. It is usually used as e-reader due to its paper-like effect.
Compatible With Raspberry Pi Series Boards, Jetson Nano
For Use With Controller Boards Like Raspberry Pi/Jetson Nano/Arduino/STM32
| VCC | Power (3.3V / 5V input) |
|---|---|
| GND | Ground |
| DIN | SPI MOSI pin |
| SCLK | SPI SCK pin |
| CS | SPI chip selection, low active |
| DC | Data/Command selection (high for data, low for command) |
| RST | External reset, low active |
| BUSY | Busy status output pin |
Application examples
Suitable for price Tags, asset/equipment Tags, shelf labels, conference name tags...
Outline dimensions

What's in the box?
1 x 7.3inch e-Paper (F)
1 x Driver Board and FFC cable
1 x PH2.0 20cm 8Pin
1 x RPi screws pack (2pcs)
Resources
Specifications
- RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
- Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
- 264KB of SRAM, and 2MB of onboard Flash memory
- Onboard FPC 8PIN connector, adapting USB Type-C port via adapter board
- Castellated module allows soldering direct to carrier boards
- USB 1.1 with device and host support
- Low-power sleep and dormant modes
- Drag-and-drop programming using mass storage over USB
- 20 × multi-function GPIO pins
- 2 × SPI, 2 × I2C, 2 × UART, 4 × 12-bit ADC, 16 × controllable PWM channels
- Accurate clock and timer on-chip
- Temperature sensor
- Accelerated floating-point libraries on-chip
- 8 × Programmable I/O (PIO) state machines for custom peripheral support


Comprehensive SDK, Dev Resources, Tutorials To Help You Easily Get Started
20 × Multi-Function GPIO Pins

What's in the box?
1 x RP2040-Tiny
1 x RP2040-Tiny-Adapter
1 x 8PIN FPC cable ~15cm
Resources
Wiki: www.waveshare.com/wiki/RP2040-Tiny
Supports Ubuntu / Kali / WIN10 IoT, single point touch, driver free
Supports Retropie, driver free
Supports all versions of Raspberry Pi
Working With Raspberry Pi 4

Audio Feature



What's in the box?
1 x 15.6inch HDMI LCD (H) (with case)
1 x Power adapter EU plug 12V
1 x HDMI cable
1 x HDMI to Micro HDMI Adapter
1 x USB type A plug to micro B plug cable
Resources
Wiki: www.waveshare.com/wiki/15.6inch_HDMI_LCD_(H)_(with_case)
The Raspberry Pi E-Ink Display HAT, featuring a 2.13-inch screen with a crisp 250x122 resolution. Equipped with an embedded controller and communicating via the SPI interface, this display supports partial refresh.
Thanks to its remarkable benefits, including exceptionally low power consumption, a broad viewing angle, and the ability to display content without constant electricity, it emerges as the perfect solution for various applications. Its versatility makes it an excellent fit for uses such as shelf labeling, industrial instrumentation, and more.Features
- No backlight, keeps displaying last content for a long time even when power down
- Ultra low power consumption, basically power is only required for refreshing
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
- SPI interface, for connecting with other controller boards like Arduino/Nucleo, etc.
- Onboard voltage translator, compatible with 3.3V/5V MCUs
- Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32)
What's in the box?
1 x 2.13inch E-Ink display HAT for Raspberry Pi 250x122
Resources
- Wiki : www.waveshare.com/wiki/2.13inch_e-Paper_HAT

Specifications
- NETWORK SUPPORT 4G/3G/2G/LPWA
- GAIN 5dBi
- FREQUENCY RANGE 315~500MHz
- 690~2700MHz
- CONNECTOR SMA male connector
- POWER INPUT 10W MAX
- OUTPUT IMPEDANCE 50Ω
- SWR ≤2.0
- POLARIZATION Vertical
- ANTENNA HEIGHT 433/470M version: ~15cm, 868/915M version: ~11cm
- CABLE LENGTH 3m
- COLOUR Black
- WATERPROOF IP65
What's in the box?
1 x Outdoor Waterproof LPWA Antenna: 5dBi High Gain, Magnetic Base, Multi-Frequency Support
Outline Dimensions:

Suitable For LPWA, SMA Male Connector, 2dBi
Outline Dimensions
Specifications
- NETWORK SUPPORT LPWA
- GAIN 2dBi
- FREQUENCY RANGE 423~433MHz, 833~903MHz
- CONNECTOR SMA male connector
- OUTPUT IMPEDANCE 50Ω
- ANTENNA LENGTH 11cm
- SWR ≤2.0
- MATERIAL ABS
- POLARIZATION Vertical
- COLOUR Black
What's in the box?
1 x 2dBi LPWA LoRa Antenna
- Adopts IPS panel, 1024×600 resolution*, with 170° viewing angle
- Adopts DVI interface for higher communication speed
- Based on the Raspberry Pi Pico with onboard 40PIN header
- Built in OSD menu for brightness/contrast adjustment
- Available in 7inch and 10.1inch display sizes
- Suitable for advertisement picture display and other application scenarios
- Comes with online development resources and manual (examples for Raspberry Pi Pico C/C++)
- OPERATING VOLTAGE5VRESOLUTION: 1024×600 pixels
- COMMUNICATION INTERFACED: VI
- DISPLAY PANEL: IPS
- DISPLAY SIZE: 7inch: 154.21×85.92mm
- PIXEL SIZE: 7inch: 0.1506×0.1432mm


PIN Definition

Interface Introduction

Outline Dimensions


What's in the box?
1 x 7 inch DVI Display Module for Raspberry Pi Pico 1024×600 Pixel(Raspberry Pi Pico Not Included)
Resources
Wiki: www.waveshare.com/wiki/PICO-DVI-LCD

Using SPI Communication, Supports 65K Color Display, Can Be Used To Display Key
Information, Status Indicator Messages Or Small Graphics
- Standard Raspberry Pi 40PIN GPIO header, compatible with Raspberry Pi series boards
- 1.3inch IPS LCD Main Screen with built in ST7789 driver chip, SPI interface communication, wide viewing angle, supports 65K color display, 240×240 resolution
- Dual 0.96inch LCD secondary screens with built in ST7735S driver chip, SPI interface communication, supports 65K color display, 160×80 resolution, can be used to display key informations, status indicator messages or small graphics
- Onboard 2x user-defined keys for extended applications
- Comes with online development resources and manual (Raspberry Pi/VisionFive2/Arduino/STM32, etc.)
Supports Customizing The Key Function, Easy To Use

Outline Dimensions
What's in the box?
1 x Zero LCD HAT (A)
1 x Standoffs pack
Resources
http://www.waveshare.com/wiki/OLED/Zero_LCD_HAT_(A)
GNSS Positioning, As Well As Bluetooth Data Transfer
- Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series boards
- UART communication, serial AT commands control
- Supports SMS, phone call, GPRS, DTMF, HTTP, FTP, MMS, email, etc.
- Bluetooth3.0 support, allows Bluetooth data transfer
- RTC real time clock, with rechargeable Li-po battery
- Integrates 3.7V Li-po battery connector and recharge circuit, allows being powered from external rechargeable Li-po battery, or recharging it in turn
- Onboard microphone, together with speaker header, can be used to make phone call
- 2x LED indicators, for monitoring the module operating status
- Onboard nano SIM card slot, supports 2G/4G SIM card *
- Comes with development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples)
| SIM868 | |||
|---|---|---|---|
| Applicable region | most countries/regions | ||
| FREQUENCY BAND | |||
| NB-IoT | N/A | B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/ B20/B25/B26/B28/B66/B71/B85 | LTE-FDD: B1/B3/B5/B8/B20/B28 |
| Cat-M | N/A | B1/B2/B3/B4/B5/B8/B12/B13/B14/B18/ B19/B20/B25/B26/B27/B28/B66/B85 | N/A |
| 2G | GSM 850/EGSM 900/DCS 1800/PCS 1900 MHz | N/A | N/A |
| GNSS | GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo | N/A |
| DATA RATE | |||
| NB-IoT(Kbps) | - | 136(DL)/150(UL) | 26.15(DL)/62.5(UL) |
| Cat-M(Kbps) | - | 589(DL)/1119(UL) | - |
| 2G(Kbps) | 85.6(DL)/85.6(UL) | - | - |
| OTHERS | |||
| Communication protocol | TCP/UDP/HTTP/SSL/FTP /POP3/SMTP/MQTT... | TCP/UDP/HTTP/HTTPS/TLS/DTLS /PING/LWM2M/COAP/MQTT... | |
| Power supply | External Li-po battery OR Raspberry Pi Pico USB port | ||
| Battery interface | 3.7V ~ 4.2V | ||
| Logic level | 3.3V | ||
| Module standalone current | Idle mode: 12mA | Idle mode: 10mA | Idle mode: 5.6mA |
| Sleep mode: 0.65mA | Sleep mode: 1.2mA | Sleep mode: 0.4mA | |
| Backup mode: 8uA | PSM mode: 3.2uA | PSM mode: 3.4uA | |
| Audio input/output | onboard microphone, with speaker header | N/A | |
| Indicator | NET: network indicator Charge: recharge indicator | ||
| Switch | Li-po battery and USB power supply switch | Li-po battery power supply switch | |
| SIM card | 2G SIM card (1.8V / 3V) | NB-IoT / Cat-M card (1.8V ONLY) | NB card (1.8V / 3V) |
| Antenna connector | LTE, GNSS, BT | LTE, GNSS | LTE |
| Dimensions | 76.15 × 24.00mm | 73.5 × 24.00mm | |
The Pico Can Be SMD-Mounted (Left), Or Attached Via Female Header (Right)
Connecting With Other Expansion Module And Antenna
Supports Communication Protocols Including: TCP/UDP/HTTP/SSL/FTP/POP3/SMTP/MQTT

GNSS Support Including GPS, GLONASS, BeiDou

Onboard Microphone, Together With Speaker Header, For Making Phone Call
Supports Sending SMS, MMS, And Email Via AT Commands
Allows Bluetooth Wireless Communication With Bluetooth3.0 Devices
Pinout Definition
Outline Dimensions
What's in the box?
1 x Pico-SIM868-GSM/GPRS/GNSS
1 x LTE antenna
1 x GPS antenna
1 x Bluetooth antenna
2 x 20PIN female pin header
1 x 40PIN male pin header
1 x 3.7V rechargeable Li-po battery
1 x Speaker
Resources
Wiki: Pico-SIM868-GSM/GPRS/GNSS
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5mm-pitch “mini” FPC format and require adapter cables to connect to the 15-way, 1mm-pitch “standard” format connectors on current Raspberry Pi camera and display products.
Note that a camera cable should not be used with a display, and vice versa.
What's in the box?
1 x Raspberry Pi 5 Display Adapter Cable
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5mm-pitch “mini” FPC format and require adapter cables to connect to the 15-way, 1mm-pitch “standard” format connectors on current Raspberry Pi camera and display products.
Note that a camera cable should not be used with a display, and vice versa.
What's in the box?
1 x Raspberry Pi 5 Display Adapter Cable
Mini, Practical And Neat
Suitable For Evaluating The Raspberry Pi CM4 Or Being Integrated Into End

Dual Gigabit Ethernet Base Board
- CM4 SOCKET: suitable for all variants of Compute Module 4
- NETWORKING" Dual Gigabit Ethernet RJ45 connectorUSBUSB 2.0 Port
- PIN HEADER: Raspberry Pi 40PIN GPIO header
- STORAGE: TF card socket for Compute Module 4 Lite (without eMMC) variants
- FAN HEADER: 4-wire SH1.0 port, allows speed adjustment and measurement, 5V
- POWER INPUT: 5V, Type-C interfaceDIMENSIONS55.0 × 68.0mm
Standard CM4 Socket And 40PIN GPIO Header
Suitable For Compute Module 4 Lite/EMMC Series Module
Rich Interfaces
What's On Board
- 40PIN GPIO header
for connecting sorts of HAT - CM4 Socket
suitable for all variants of Compute Module 4 - RJ45 Dual Gigabit Ethernet Port
Dual RJ45 Gigabit Ethernet ports, 10/100/1000M compatible
ETHERNET 0: CM4 original network port
ETHERNET 1: PCIe extended network port - USB 2.0 Type A port
for connecting sorts of USB devices - FAN header
for connecting cooling fan, allows speed adjustment and measurement - Reset button
- Boot switch
ON: CM4 would be booted from USB-C interface
OFF: CM4 would be booted from eMMC or TF car
- Type-C port
5V/2.5A power supply, or used for eMMC programming - TF card slot
for connecting a TF card with pre-burnt image (Lite variant ONLY) - RTL8111H
Gigabit NIC chip - Indicator
PWR: indicating the power supply status of Raspberry Pi
SYS: indicating the working status of Raspberry Pi - SYSTEM switch
EEPROM_WP: Prevent EEPROM from being overwritten
WiFi_DIS: WiFi disabled, only for CM4 version with wireless
BT_DIS: Bluetooth disabled, only for CM4 version with wireless

What's in the box?
1 x Mini Dual Gigabit Ethernet Base Board Designed for Raspberry Pi Compute Module 4
Resources
WIKI: www.waveshare.com/wiki/CM4-DUAL-ETH-MINI
LoRaWAN Protocol Support

Features At A Glance
The Pico-LoRa-SX1262-XXXM is LoRa node expansion module designed for Raspberry Pi Pico based on SX1262 with better performance than the SX127X series. The LoRa modulation technology solves the balancing problem between transmission distance, interference immunity, and power consumption that traditional solutions aren't able to deal with.
It supports LoRaWAN protocol, which allows it to connect the TTN, ChirpStack servers through a LoRa gateway to use LoRa Cloud service fast and easily.
- Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series boards
- Supports LoRaWAN protocol, different frequency bands are available
- Adopts active temperature compensation crystal oscillator, ensuring stable long-term operating in extreme high/low temperature conditions
- Supports FSK, GFSK, LoRa modulations, outstanding anti-blocking performance and ultra long communication distance
- PH1.25 battery header and recharge controller, allows connecting rechargeable Lithium battery
- High receiving sensitivity (up to -148dBm), programmable emitting power (up to 22dBm)
- Supports preamble detection, with CRC, up to 256 bytes data packet engine
- Comes with development resources and manual (example in C)
Specifications
| FREQUENCY BAND | 868M (863~870MHZ) | ||
|---|---|---|---|
| RFID | SX1262 | ||
| Emiting power | 22dBm | ||
| Emiting current | 107mA@22dBm | 118mA@22dBm | |
| Receiving current | 5.3mA@125KHz | ||
| Modulation | LoRa/(G)FSK | ||
| Operating voltage | 3.3V | ||
| Communication bus | SPI | ||
| Operating temperature | -40 ~ 85℃ | ||
| Dimensions | 21.00 × 52.00mm | ||
Raspberry Pi Pico Header Compatibility
Onboard Female Pin Header For Direct Attaching To Raspberry Pi Pico


- Raspberry Pi Pico header
- Status indicators
PWR: power indicator
CHG: recharge indicator - RF switch control
A: controlled by high level
B: controlled by GPIO22
- MCP73831 recharge IC
- SX1262 module
- IPEX 1 antenna connector
- Power switch
- PH1.25 battery header
Pinout Definition

Industrial Control, Intelligent Home, And Data Acquisition...

Outline Dimensions

What's in the box?
1 x Pico-LoRa-SX1262-XXXM
1 x 3.7V 600mAh Li-po battery
1 x Antenna 2DB
1 x IPEX1 to SMA wire
Resources
Wiki: Pico-LoRa-SX1262

Features At A Glance
- Support USB to RS485 bidirectional conversion
- Fast communication, stable and reliable, better compatibility
- Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning proof & anti-electrostatic
- Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance
- 3 LEDs for indicating the power and transceiver status

Specifications
| PRODUCT TYPE | Industrial Grade USB to RS485 converter | |
|---|---|---|
| HOST PORT | USB | |
| DEVICE PORT | RS485 | |
| BAUDRATE | 300bps ~ 3Mbps | |
| USB | Operating voltage | 5V |
| Connector | USB-A | |
| Protection | 200mA self-recovery fuse, ESD protection | |
| Transmission distance | About 5m | |
| RS485 | Connector | Screw terminal |
| Pins | A+, B-, GND | |
| Direction control | Hardware automatic control | |
| Protection | 600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor) | |
| Transmission distance | About 1.2km(low rate) | |
| Transmission mode | Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) | |
| LED INDICATORS | PWR | Red power indicator, light up when there is USB connection and voltage is detected |
| TXD | Red TX indicator, light up when the USB port sends data | |
| RXD | Red RX indicator, light up when the device ports send data back | |
| OPERATING ENVIRONMENT | Temperature | -15℃ ~ 70℃ |
| Humidity | 5%RH ~ 95%RH | |
| OPERATING SYSTEM | Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 | |
Onboard Original CH343G And SP485EEN Chips, Providing Better Stability And Compatibility, Built-In Lightningproof Tube, Resettable Fuse, ESD And TVS Protection Circuits, Etc.

The USB Signal Can Be Converted Into A Balanced Differential RS485 Signal And The Transmission Rate Is Stable. The Reliable Speed Is 300bps ~ 3Mbps, The Transmission Distance Is About 1.2km For RS485, And About 5 Meters For USB.

Supports Mac, Linux, Android, WinCE, Win11/10/8.1/8/7/XP, Etc.

Onboard 3 LEDs For Indicating The Power And Transceiver Status


What's in the box?
1 x USB TO RS485 Bidirectional Converter
Resources
www.waveshare.com/wiki/USB_TO_RS485_(B)
Dedicated Aluminum Heatsink, Corrosion / Oxidation Resisting, Better Heat Dissipation

Matches The Size And Mounting Holes Of The Raspberry Pi 5, With Thermal Pads

1 x Pi5-Active-Cooler-C
1 x Thermal pad (3PCS)
How To Install
Attach The Thermal Pads And Fix The Aluminum Heatsink Via Spring-Loaded Push Pins

* for reference only, the Raspberry Pi 5 and TF card are NOT included.

Adopts Temperature-Controlled Blower Fan, Faster Heat Dissipation, More Durable

* for reference only, the Raspberry Pi 5 is NOT included
Aluminium Alloy Case, With Temperature-Controlled Blower Fan And Aluminium Heatsink
For Better Heat Dissipation

More Details
Adopts Advanced Metal Cutting Processing, With Precise Openings For Sorts Of Connectors, More Convenient For Wiring

The Fins Work Together With The Cooling Fan To Accelerate Heat Dissipation, Ensuring Stable Operation Of The Raspberry Pi 5

What's in the box?
1 x Aluminium Alloy lower plate
1 x Aluminium Alloy upper plate
1 x Cooling fan
1 x Screwdriver
1 x L-form hex socket spanner
1 x Thermal tape 4PCS
1 x Screws pack
The Case Consists Of Upper And Lower Cover Plates, With Thermal Tapes,
Easy To Install

Modbus RTU Protocol, Multi Isolation Protection Circuits, Safe & Stable & Reliable

Features At A Glance
This product is an industrial 16-ch relay module controlled via RS485 bus, adopts Modbus RTU protocol, built-in protection circuits such as power supply isolation, magnetical isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS case.
The Modbus RTU 16-Ch Relay is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirements.
- Configurable device address (1~255), multi devices can be cascaded on RS485 bus
- Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically
- Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
- Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
- Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic
- Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit
- Onboard dedicated relay driver chip, with built-in freewheeling diode protection, the driving ability is stronger and more stable
- Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
- High quality relay, contact rating: ≤10A 250VAC/30VDC
- Rail-mounted ABS case, easy to install, safe to use
- 3 LEDs for indicating the MCU status and signal transceiving status
Specifications
| OPERATING VOLTAGE | 5V |
|---|---|
| COMMUNICATION INTERFACE | RS485 |
| BAUDRATE | 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000 |
| DEFAULT COMMUNICATION FORMAT | 9600, N, 8, 1 |
| RELAY CHANNELS | 16 |
| CONTACT FORM | 1NO 1NC |
| COMMUNICATION PROTOCOL | Standard Modbus RTU protocol |
| RS485 ADDRESS | 1~255 |
| LED INDICATORS | STA: MCU indicator, keep flashing when the MCU normally working TXD: TX indicator, lights up when sending data RXD: RX indicator, lights up when receiving data |
Onboard Multiple Isolation Protection Circuit
Multiple Protections, More Safe And Reliable

Rail-Mount Case Design
Rail-Mounted ABS Protective Enclosure, Easy To Install, Safe To Use

RS485 Communication
Configurable Device Address (1~255), Multi Devices Can Be Cascaded On RS485 Bus
In Case Of Many Devices Are Cascaded, Or The Communication Distance Is Quite Long, It Is Necessary To Use RS485 Repeaters

* for reference only, the USB to RS485 is NOT included.
Relay Connection
Contact Rating Of The Onboard Relay Up To 10A 250VAC/30VDC
Directly Controlling 220VAC Home Appliances, Or Devices Below 30VDC

Applications

Outline Dimensions

What's in the box?
1 x Modbus RTU Relay 16CH
1 x US plug 5V 2A Power supply (with EU head adapter)
Resources
www.waveshare.com/wiki/Modbus_RTU_Relay_16CH
