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 SpyCam project uses the “AI Thinker ESP32-CAM” module which has a 2MP Camera, 10 I/O pins, an on-chip LED and one MicroSD slot to store the images and videos. With its tiny sized camera and 240MHz CPU is able to provide a fair quality images and video frames. You can either use a “WaveShare…
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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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The high voltage (parallel) programming method which has been used in WiCardKit Software programmer is the highest layer of access to the microcontroller memories and programming. This method can unlock the AVR/PIC chips which can’t be programmed by regular programmers while the chips work well. The other feature is the “reset” pin in some the…
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WiFi Autoconnect and Web application builder project contains Arduino ESP32 WiFi autoconnect and Arduino ESP12/ESP8266 WiFi autoconnect The source code contains 3 files: First open one of the files with Arduino program, then set the settings as the following image (Board, CPU Frequency And Flash Frequency) Then put the ESP32 module on the “download mode”…
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This is a package of 4 projects firmware for smart house to seeing and listening to what is happening. The package includes ESP8266 WiFi Microphone, ESP32 WiFi Microphone, ESP32-Cam IP Camera and ESP32-Cam SpyCam (Camera and Microphone). Also these projects have the chain network feature which lets the devices connect to each other and have…
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There are multiple useful tutorial posts about electronics and electronic engineering in my website. Here are some of the tutorials: Advantages and disadvantages of connecting resistors in series and parallelOperational Amplifier IC (OP-AMP)Transistor amplifierElectrical, magnetic and electromagnetic fieldsCapacitor applications in the circuit designCircuit design and constructionTransistor and how to use it in the circuitCapacitor and…
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