|
I am working on a project that will use an ESP8266 as a WiFi module (because of it's low power consumption) for a Raspberry Pi. I also would like to use the ESP8266 to monitor a specific input, and if the input is low, output a signal on another pin on the ESP8266. Is it possible to do both of these with one ESP8266? |
|||||||||||||
|
|
Like Mark says, you could or you could use an invertor IC. OK I understand your not really into electronics, because you use a PI, but its not that difficult. :)
This is a Hex invertor, total overkill for one signal, but I've used one before. You just need to supply 2 to 5v at pin 14 and Gnd at pin 7 (You should be able to take those of the PI and then put your input into pin 1 and take the output of pin 2. Just Google for invertor IC and then see what one you can get in the timescales you need it. Unfortunately if you did that it makes the question off topic :( |
|||||
|
|
All ESP modules have at least some of the ESP's GPIO pins brought out. There are several ways to program it, the most-on-topic for here (though strictly off topic) being to use the Arduino IDE. This example explains how to do it. |
|||
|
|
|
The problem you'll likely encounter is modifying the ESP firmware to include managing the signal you want to monitor. You'll need the source to the AT interpreter code that makes the ESP act like a serial-driven WiFi shield. At the other end of the scale you'd be faced with rolling your own sketch to do both, kind of a make-work job since the AT firmware already exists. A solution external to the ESP sounds like a much more economical use of your time. |
|||
|
|
