In the new revision of the ESP8266 (or NodeMCU) and ESP32 WiFi Microphone project (rev 2.0 WiFi Voice Recorder), I have added the voice recording feature. The updated revision is available in the following link: ESP8266/NodeMCU WiFi Voice Recorder Arduino Source Code – Rev 2.0 ESP32 WiFi Voice Recorder Arduino Source Code and Schematic –…
Read more
This project is a GPS Tracker (Locator) with Arduino AVR board (UNO/NANO) and Ai thinker A9G GPS/GSM/GPRS module. The Arduino board reads the GPS data and sends it to the web server/host via GPRS. Then you can see the location on map with the Google Map API. You can call to your “SIM Card” number,…
Read more
ESP8266 has an ADC input which is a 10 bit analog to digital converter and this pin is the audio signal input for the “ESP8266 Audio Recorder” project. This project is an arduino (c-language) source code, which is a firmware for the ESP8266 module and records the audio data by reading the ADC pin’s value,…
Read more
I have updated the ESP8266/NodeMCU Microphone Arduino project and it is available in the following link: ESP8266/NodeMCU Network WiFi Spy Microphone Arduino Source Code – Rev 1.6 Also there’s another Arduino program for the ESP32 modules in the following link: ESP32 Network WiFi Microphone Arduino Source Code and Schematic – rev 1.6 In the new…
Read more
This project is an “ESP32 WiFi Camera Microphone (Spy Camera)” firmware arduino source code (.ino) with Chain Network feature which is based on the “ESP32 WebApp Builder” project. The “Chain Network” is a local network which the devices one by one are connected to the each other. The Spy Camera project uses the “AI Thinker…
Read more
Here is another update for the “ESP Spy Microphone” project which is ESP8266/NodeMCU and ESP32 WiFi microphone arduino source code, revision 1.5. In this update I have increased the audio stream recorder sample rate to 240KHz for both of ESP8266 and ESP32 firmwares. Also the new feature is the “Chain Network” which is a local…
Read more
I recently have updated “ESP WiFi Microphone” project to rev 1.3 and now the revision 1.4 is available which is stronger and more stable than rev 1.3. This project is compatible with both of ESP8266 and ESP32 modules and you can simply upload it on NodeMCU, ESP32 DEVKIT and other similar boards. In the latest…
Read more
The “Ai Thinker ESP12” module has an ACD pin which works in range of 0V to 3.3V with 10 bits resolution (0-1023). The pin is between RST and EN. In the “WiFi Microphone” project, we have used this channel as the audio signal input. This project contains two folders ESP8266WiFiMicrophone (the WiFi Microphone source code)…
Read more
