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syssi / esphome-pipsolar

ESPHome component to monitor and control a pipsolar inverter via RS232
Apache License 2.0
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rs-232 to rsp8266 #95

Closed shamirahim111 closed 7 months ago

shamirahim111 commented 7 months ago

hi.

i have an inverter that has rs-232 port. i have bought one rs-232 to TTL serial converter https://robu.in/product/rs232-to-ttl-serial-interface-module/

this has just 4 pinouts,

VCC, gnd, RX, Tx

in your photo, D1 mini pins are G, D1, D2 and SV3? so these pins aren't all visible in https://robu.in/product/nodemcu-esp8266-v3-lua-ch340-wifi-dev-board/

so which should be connected where?

any help would be appreciated

wojtbar commented 7 months ago

RS-233 to ttl pin vcc to 3.3 esp8266 , RS-232 to ttl pin gnd to G esp8266 Rs232 to ttl pin txd to D2 esp8266 Rs232 to ttl pin rxd to D1 of ESP8266

wojtbar commented 7 months ago

https://github.com/syssi/esphome-pipsolar/tree/main/images

syssi commented 7 months ago

in your photo, D1 mini pins are G, D1, D2 and SV3? so these pins aren't all visible in https://robu.in/product/nodemcu-esp8266-v3-lua-ch340-wifi-dev-board/

Are you sure? This image of your board shows GND, 3.3V, D1 = GPIO5, D2 = GPIO4 :

https://robu.in/wp-content/uploads/2018/03/62160-03.jpg