3 ms·
You may find esp-link interesting: https://github.com/jeelabs/esp-link https://github.com/jeelabs/esp-link I've built a WiFi<->RS232 bridge using the firmware,
by agapon 2y ago
You may find esp-link interesting: https://github.com/jeelabs/esp-link https://github.com/jeelabs/esp-link
I've built a WiFi<->RS232 bridge using the firmware, ESP8266 and a UART<->RS232 converter module.
All hardware is very cheap.