diff --git a/examples/peripherals/uart/uart_echo_rs485/README.md b/examples/peripherals/uart/uart_echo_rs485/README.md index 887ca2ede4..a2203062c7 100644 --- a/examples/peripherals/uart/uart_echo_rs485/README.md +++ b/examples/peripherals/uart/uart_echo_rs485/README.md @@ -13,7 +13,7 @@ The approach demonstrated in this example can be used in user application to tra ### Hardware Required PC + USB Serial adapter connected to USB port + RS485 line drivers + Espressif development board. -The MAX485 line driver is used for example below but other similar chips can be used as well. +The MAX483 line driver is used for example below but other similar chips can be used as well. #### RS485 example connection circuit schematic: ``` @@ -22,7 +22,7 @@ The MAX485 line driver is used for example below but other similar chips can be +-------x-------+ +-------x-------+ RXD <------| RO | | RO|-----> RXD | B|---------------|B | - TXD ------>| DI MAX485 | \ / | MAX485 DI|<----- TXD + TXD ------>| DI MAX483 | \ / | MAX483 DI|<----- TXD ESP32 BOARD | | RS-485 side | | SERIAL ADAPTER SIDE RTS --+--->| DE | / \ | DE|---+ | | A|---------------|A | |