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,…
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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 2.0 Also there’s another Arduino program for the ESP32 modules in the following link: ESP32 Network WiFi Microphone Arduino Source Code and Schematic – rev 2.0 In the new…
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This project is an “ESP32-Cam WiFi Robot” firmware arduino source code (.ino) and also can be used as a “Dome Camera”. This project is based on the “ESP32 WebApp Builder” and Arduino ESP32-CAM CCTV, WiFi IP Camera projects. The WiFi Robot project uses the “AI Thinker ESP32-CAM” module which has a 2MP Camera, 10 I/O…
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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…
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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 firmware. Also the new feature is the “Chain Network” which is a local…
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This project is an ESP32 and ESP8266 WiFi ECG Monitor (Electro Cardio Gram) and “Pulse Oximeter” firmware with Chain Network feature. The “Chain Network” is a local network which the devices one by one are connected to the each other. This project is based on the “ESP32 WebApp Builder” and “ESP8266 WebApp Builder” projects which…
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Today I’m going to introduce my new esp based projects which is “ESP WiFi Oscilloscope and Volt Meter” firmware with Chain Network feature. This projects are based on the “ESP32 WebApp Builder” and “ESP8266 WebApp Builder” projects which is a base source code with the chain network feature. These projects are available in the following…
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The ESP WebApp project is a base source code which also has the chain network feature and a WebApp builder file which lets you customize your own WebApp style and menus. The project is available in the following links: ESP32 WebApp Builder + Chain Network Feature (Arduino Source Code) – Rev 1.4 ESP8266 WebApp Builder…
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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…
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The “DOIT ESP32 DEVKIT V1” module has multiple ACD pins which work in range of 0V to 3.3V with 12 bits resolution (0-4095). The pin that we have used for this project is GPIO33 (D33). In the “ESP32 WiFi Microphone” project, we have used this channel as the audio signal input. Here’s the project link:…
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