Content for PCB

Audio Line Driver using DRV135 with Balanced Output

“The project presented here is a differential output amplifier that converts a single-ended audio signal input to a balanced output pair. This balanced audio project consists of high-performance OPAMPS with on-chip precision resistors. They are fully specified for high-performance audio …

Audio Line Receiver using INA134

“The project described here is a differential line receiver consisting of high-performance INA134 OPAMPs with on-chip precision resistors. The project is fully specified for high-performance audio applications and has excellent AC specifications, including low distortion (0.0005% at 1kHz) and …

Glowing RGB LED Magic Cube (WS2812)

“I fully designed from scratch every single piece of this project to create a cool glowing Magic LED Cube, mainly made for light animation and basically could be explored for decoration of Electronics Labs. Designed around the awesome RP2040 Microcontroller …

Li.Po. Battery charger with BT Telemetry

“For 2s1p (7.4V) battery packs, it does balancing, ready for a load circuit. I would introduce to you this charger for Lithium Polymers (Li.Po.) batteries. It does support 2s1p battery packs, two 3.7V elements in series, 7 …

Matrix Game Console

“A generic 32k Flash, 2k RAM Game Console with an 8x8 Red/Green LED matrix, Speaker, X-Pad and 3 support buttons. One of the first computer games that I remember playing on my TRS80 clone was a game called Othello …

RGB Mixinator V2

“DIY Color Mixer that uses an Arduino Nano with few WS2812B LEDs Mixinator is essentially an RGB Studio Light that contains 10 WS2812B LEDs controlled via three Sliding Pots. we can control the color output by changing the sliding Pot …

3-Phase Brushless DC Sinusoidal Sensorless Fan Motor Driver

“Driving a low current 3 phase brushless Sensorless DC motor is very easy with this project. This Full-wave BLDC driver project is capable to drive low current brushless fan motor without a hall sensor. 180° sinusoidal drive, high torque output …

PALPi Lite Edition

“Made yet another Raspberry Pi Based Retro Game Console The IDEA here was to make a portable handheld gaming console that can run RETRO Games like Contra, Pokemon, Super Mario ETC. For Display, I’ve used a 4 inch Car …

SPI Programmable-Gain Amplifier with Input VOS Trim and Output OPAMP

“The project presented here is an SPI programable Gain Amplifier using MAX9939. The MAX9939 is a general-purpose, differential-input programmable-gain amplifier (PGA) that is ideal for conditioning a variety of wide dynamic range signals such as those found in motor current-sense …

SPY Anti-theft Camera In LED BULB- ESP32CAM

“A anti theft SPY Wi-Fi camera using ESP32 board inside a led bulb cover. And making a reliable power supply for this. Hi guys, Today we are going to make a SPY camera using ESP32-CAM. I have some ideas …