Re: Trouble with ESP-01 + 1Ch 5V relay from LC Technology
Posted: Mon Jan 22, 2018 8:13 am
I have a similar model but at 12 volts, even the relay is 12V, do I have to change the resistance values? Thank you.
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hkusp wrote:If you follow my directions, the ESP-01 will boot. Be sure to tie RST and CH_PD to VCC. Also, tie GPIO0 to VCC with a 10K resistor. If you actually want to be able to control the relay, then you will have to do the rest of the modifications in my post. (Removing the microcontroller, 4.7K SMT resistor, running a short jumper, etc.)
Once you get setup and going, it takes about 10 minutes modify each relay board. Then, I program the ESP-01 on an external programmer and install on the relay board. When the ESP boots, it will be responding to MQTT messages and you'll be able to change the software over the air (OTA)!
Ienuzza wrote:I have a similar model but at 12 volts, even the relay is 12V, do I have to change the resistance values? Thank you