MOD-RS485

3.3V 3.3V 3.3V 3.3V U1 UEXT sck 3 1 2 RO VCC /RE B DE A DI GND 8 7 6 5 1 ADM3483ARZ 2 3 #SS BH10S SCL/SCK 1 2 3 4 RXD SDA #ss SCK 2 4 6 8 10 #SS/SDA TXD SCL 1 3 5 7 9 R3 NA 2 0 + 47uF/6.3V/tant 1 100nF C2 ENABLE_RT C1 R1 NA R5 NA B A RT 120R R2 NA MOD-RS485_rev_A Olimex LTD, Bulgaria, 2013 https://www.olimex.com This hardware design by Olimex LTD is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. R6 NA 3.3V R4 100R TB4/5MM RS485-4 RS485-3 RS485-2 RS485-1