I got an ESP-12Q ESP8266 module and I am trying to upload Arduino firmware on it. But I can't even get any response from the module at all. No LEDs anywhere are on, I don't even know if the thing is dead or if my wiring is wrong. I get not even a single sign this thing is alive on the serial monitor. I have tried different baud rates. I don't know if it is a faulty unit because I can't tell if it is on. Absolutely nothing.
I have wired it up as follows:
I have also tried using 10k resistors to connect between the GPIOs and the VCC and ground but no luck. I also tried using the Arduino UNO to act as USB to Serial (tx-tx, rx-rx) but nothing.
I am about to toss this unit in the bin because I am completely at a loss right now. Any help would be greatly appreciated.
Best Answer
The first thing that stood out for me was mentioning wiring from RX to RX and TX to TX. Typically you would wire RX(A) to TX(B) and TX(A) to RX(B) where A is the one device and B is the other device.
The pins are named from the perspective of each device. So device A's RX is where A expects to receive data and A's TX is where A expects to transmit data. Similarly, device B's RX is where B expects to receive data and B's TX is where B expects to transmit data.
Try changing the wiring of those pins and hopefully it will work.