This is a 2-channel RS485 module for Raspberry Pi Pico! Waveshare SKU: 19717 Waveshare Part Number: Pico-2CH-RS485 The module uses an SP3485 RS485 Transceiver and uses the UART bus to easily convert UART to RS485 or vice versa. The baud rate is 300~500,000bps. Onboard LEDs indicate the status of each pin (TXD0, RXD0, PWR, TXD1, RXD1). No soldering is required as the module comes pre-assembled, with female headers ready to slot your Raspberry Pi Pico in to. Both terminal blocks and male pin headers are available for connecting the board. IMPORTANT: Ensure to mount correct way round on Pico board! When connecting your Pico, please pay attention to the direction of connection. The direction can be judged by observing the USB screen printing end of the module and the USB interface end of the Pico. NOTE: Raspberry Pi Pico not included. You'll need a Pico with male headers soldered to it. We also sell many other Rapsberry Pi Pico related boards, RP2040 microcontroller based board. Features Compatible with Raspberry Pi Pico Uses the UART bus - converting UART to RS485 or vice versa Onboard indication LEDs Terminal blocks alongside male jumper headers - options for connectivity Pre-soldered Comes with Online development resources and examples - see wiki page. Specifications Operating voltage: 3.3V Communication bus: UART RS485 transceiver: SP3485 Baudrate: 300 ~ 500000bps Pinouts PIN Raspberry Pi (BCM) DESCRIPTION VCC VSYS Power input GND GND Ground TX_CH0 GP0 UART transmit pin RX_CH0 GP1 UART receive pin TX_CH1 GP4 UART transmit pin RX_CH1 GP5 UART receive pin Specs and Docs PDF SchematicsPDF Schematics:99tech.com.au/m/rpi-pico-x-dual-rs485_schematic.pdf Wiki page with lots of additional information and sample codeWiki page with lots of additional information and sample code:waveshare.com/wiki/Pico-2CH-RS485 Package Includes 1 x Raspberry Pi Expansion Board [mx_insert-post-ebay slug="ebay-t-default"] SKU: RPI1-004 Categories: Pi Hats & Plates, Raspberry Pi Tags: RPi Pico, rs485
