Category: Uncategorized

Electronics and Programming tutorials and projects

promote free electronics projects arduino microcontroller source code

Promote Instead Payment

I provide electronics projects, schematics, arduino and microcontroller source codes and firmware in my on-line store. You can promote my on-line store ( and share the projects in your social media (facebook, twitter, linkedin, instagram etc. with hashtags and direct links), your blog or your website instead of paying the price with the cryptocurrency. Just…
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nodemcu esp32 esp8266 audio recorder

ESP8266 Audio Recorder

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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Cryptocurrency, How To Pay

To buy a project, you need to transfer the money (the amount of project) with the “Cryptocurrency” first. Then comeback to our website, click on the “Buy” button of the project and insert the txid and your e-mail address in the form. If you are going to buy our projects from our on-line project store,…
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esp wifi microphone

ESP WiFi Microphone

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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ESP32 WiFi Microphone

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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wifi spy microphone project

WiFi Spy Microphone With ESP8266 and NodeMCU

I have updated WiFi Spy Microphone project and now the newer revision of this project is available in the following links: ESP8266 WiFi Spy Microphone Arduino Source Code (ESP12, NodeMcu…) – Rev 2.0 The free source code of the older revision: ESP8266 WiFi Microphone (ESP12, NodeMcu…) – Rev 1.2 When ever I updated this project,…
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