XL4015 Buck Converter: Adjustable Bench PSU Build | ShillehTek
Build an XL4015 5A buck-converter bench power supply with CC/CV adjustment for precise 1.25-36V regulated output, usi...
Arduino Nano + ACS712: Measure AC/DC Current Up to 30A | ShillehTek
Build an Arduino Nano + ACS712 current sensor meter to measure AC/DC current up to 30A, with zero-offset calibration ...
Arduino Nano KY-018: Build a Light-Following Robot | ShillehTek
Build an Arduino Nano light-following robot using two KY-018 photoresistors and an L298N for differential steering, w...
Arduino YF-S201 Water Flow Sensor: Measure L/min | ShillehTek
Build an Arduino YF-S201 water flow meter to measure liters per minute and total liters for dosing, monitoring, and l...
Arduino Nano DRV8825: Smooth NEMA 17 Motor Control | ShillehTek
Wire an Arduino Nano to a DRV8825 to drive a NEMA 17 with correct current limit and 1/32 microstepping for smoother, ...
Arduino 4-Channel Relay Module: Reverse a DC Motor | ShillehTek
Build a high-current Arduino DC motor reverser using a 4-channel relay module with safe interlock wiring, ideal for a...
Arduino Nano MQ-2: Build a Gas Leak Alarm | ShillehTek
Build an Arduino Nano MQ-2 gas and smoke alarm with a buzzer threshold alert, plus optional OLED readout and ESP32 Wi...
ESP32 LD2410 vs RCWL-0516: Pick the best sensor | ShillehTek
Compare ESP32 wiring and real-world behavior for LD2410 mmWave presence radar vs RCWL-0516 Doppler motion, so you cho...
Arduino MAX30102 vs MAX30100: Choose the best sensor | ShillehTek
Compare MAX30100 vs MAX30102 pulse oximeter modules for Arduino wearables, focusing on ADC, FIFO, and libraries so yo...
CP2102 USB-to-TTL: Flash ESP-01 and STM32 boards | ShillehTek
Flash an ESP8266 ESP-01 and STM32 Blue Pill over UART using a CP2102 USB-to-TTL adapter, with stable power wiring tip...
Arduino Nano DS3231 + TM1637: Drift-Free Alarm Clock | ShillehTek
Build an Arduino Nano clock with a DS3231 RTC and TM1637 display for a drift-free desktop alarm clock with temperatur...
Arduino Nano TTP223B: Hidden Touch Relay Switch | ShillehTek
Build a hidden touch switch using an Arduino Nano and TTP223B to toggle a relay through acrylic or wood, for clean en...