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ShillehTek IoT & Beyond

Raspberry Pi, ESP32 & Arduino Tutorials

Free step-by-step guides, wiring diagrams, and code for makers — new builds added every week.

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326 tutorials
Maker Component Cabinet Resistor Kits: Find Parts Fast | ShillehTek
Jul 10, 2026 Mahmood M. Shilleh 12 views

Maker Component Cabinet Resistor Kits: Find Parts Fast | ShillehTek

Build a labeled drawer component cabinet to organize 1900+ resistors, capacitors, and transistors so you find values ...
ESP32 SD Card: Local CSV Data Logging Setup | ShillehTek
Jul 10, 2026 Mahmood M. Shilleh 47 views

ESP32 SD Card: Local CSV Data Logging Setup | ShillehTek

Build an ESP32 SD card CSV data logger with optional DS3231 timestamps for reliable offline sensor logging when WiFi ...
Arduino Nano EM4100 RFID: EEPROM multi-card door lock | ShillehTek
Jul 10, 2026 Mahmood M. Shilleh 16 views

Arduino Nano EM4100 RFID: EEPROM multi-card door lock | ShillehTek

Build an Arduino Nano EM4100 125 kHz RFID door lock with EEPROM multi-card access and a relay-driven electric strike ...
XL4015 Buck Converter: Adjustable Bench PSU Build | ShillehTek
Jul 10, 2026 Mahmood M. Shilleh 18 views

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
Jul 10, 2026 Mahmood M. Shilleh 27 views

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
Jul 10, 2026 Mahmood M. Shilleh 11 views

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
Jul 10, 2026 Mahmood M. Shilleh 32 views

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
Jul 10, 2026 Mahmood M. Shilleh 18 views

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, ...
XIAO nRF52840 BME280: Build a BLE Temp Sensor | ShillehTek
Jun 20, 2026 Mahmood M. Shilleh 65 views

XIAO nRF52840 BME280: Build a BLE Temp Sensor | ShillehTek

Build a Seeed XIAO nRF52840 BLE temperature/humidity sensor with a BME280, then learn the setup and low-power approac...
Seeeduino XIAO SAMD21 USB-HID: Build a Macro Numpad | ShillehTek
Jun 20, 2026 Mahmood M. Shilleh 40 views

Seeeduino XIAO SAMD21 USB-HID: Build a Macro Numpad | ShillehTek

Build a Seeeduino XIAO SAMD21 USB-HID macro numpad with a 4x4 keypad, then type shortcuts and text snippets reliably ...
Arduino 4-Channel Relay Module: Reverse a DC Motor | ShillehTek
Jun 20, 2026 Mahmood M. Shilleh 78 views

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...
STM32H723ZGT6 STM32duino: Install and benchmark | ShillehTek
Jun 19, 2026 Mahmood M. Shilleh 34 views

STM32H723ZGT6 STM32duino: Install and benchmark | ShillehTek

Set up the STM32H723ZGT6 in Arduino IDE using STM32duino, run a blink test, and benchmark a fast float loop for real-...