ESP8266-01 and RF433 transmitter question ..
Posted: Wed Aug 03, 2016 3:36 pmHello friends,
This is my first ESP8266 project and my first post. I became interested into ESP because I have a few homebrew home automation projects based on Arduino and RF433. In the future I'd like to replace these modules with ESP modules.
Last night I got a ESP module working for the first time. I'm programming it using the Arduino IDE and I have a basic HTTP webserver WiFi client that can toggle a LED. Very much the Hello World of ESP I presume.
I've hooked up the ESP to a 12v-5v-3.3v breakout board and I am using the Arduino brand USB Serial light adapter (programmer). In my case I didn't use a logic level converter for the ESP RX pin, as it turns out the logic level converter I have is broken.
The RF433 transmitter board is a FS1000A. After hooking it up to the ESP and including the Arduino library I got no errors and uploaded the code. It runs but it doesn't work. I've used the same transmitters with an ATTiny running on 3 volts using a coin cell battery.
In case you are wondering why I am trying to use a RF transmitter in the first place; I am currently hosting a webserver on an Arduino Ethernet that receives HTTP requests and sends out codes via RF433. That way I control lights using RF433 but still have web capabilities for use with my smartphone. I would like to keep it that way for now, ideally my new projects will both have WiFi and RF433 so I can use cheap sensors and low power ATTiny's to control lights as well as a web interface. I hope that makes sense.
The library is called RemoteTransmitter, here's the code I added to the original sketch:
Unfortunately I don't have an oscilloscope so I have no idea how to troubleshoot this. What am I missing? Could it be the data line voltage? I'm not sure what the ATTiny85 output pins supply with regard to the 3v input voltage. I have new bi-directional logic level converters on the way, should I try a voltage multiplier circuit?
Hopefully you guys have any idea's or pointers that could steer me into the right direction.
Thanks for reading.
This is my first ESP8266 project and my first post. I became interested into ESP because I have a few homebrew home automation projects based on Arduino and RF433. In the future I'd like to replace these modules with ESP modules.
Last night I got a ESP module working for the first time. I'm programming it using the Arduino IDE and I have a basic HTTP webserver WiFi client that can toggle a LED. Very much the Hello World of ESP I presume.
I've hooked up the ESP to a 12v-5v-3.3v breakout board and I am using the Arduino brand USB Serial light adapter (programmer). In my case I didn't use a logic level converter for the ESP RX pin, as it turns out the logic level converter I have is broken.
The RF433 transmitter board is a FS1000A. After hooking it up to the ESP and including the Arduino library I got no errors and uploaded the code. It runs but it doesn't work. I've used the same transmitters with an ATTiny running on 3 volts using a coin cell battery.
In case you are wondering why I am trying to use a RF transmitter in the first place; I am currently hosting a webserver on an Arduino Ethernet that receives HTTP requests and sends out codes via RF433. That way I control lights using RF433 but still have web capabilities for use with my smartphone. I would like to keep it that way for now, ideally my new projects will both have WiFi and RF433 so I can use cheap sensors and low power ATTiny's to control lights as well as a web interface. I hope that makes sense.
The library is called RemoteTransmitter, here's the code I added to the original sketch:
Code: Select all
#include <RemoteTransmitter.h>
int period = 362;
int pin = 2;
// ..
void setup() {
// ..
pinMode(pin, OUTPUT);
// ..
}
void loop(){
// ..
// Val is set by incoming HTTP requests
RemoteTransmitter::sendCode(pin, val, period, 3);
// ..
}
Unfortunately I don't have an oscilloscope so I have no idea how to troubleshoot this. What am I missing? Could it be the data line voltage? I'm not sure what the ATTiny85 output pins supply with regard to the 3v input voltage. I have new bi-directional logic level converters on the way, should I try a voltage multiplier circuit?
Hopefully you guys have any idea's or pointers that could steer me into the right direction.
Thanks for reading.