Unravel the Mystery of Electronics
Soldering required. Check the supplied parts and board revision.
Listing specifies 5-volt direct current. Soldering required; battery and glue not included.
Breadboard, wires and assorted parts. Arduino controller board not included.
Surface-mount soldering practice. Battery and battery holder not included.
Clock-and-case project kit. Soldering required; check included parts and power requirements.
Soldering and assembly required. Check battery and track requirements before buying.
Tricky Circuit may earn a commission through these links. Product ideas have not been bench-tested by Tricky Circuit and are not verified lesson parts lists.
Turn distance into sound with a Raspberry Pi Pico and HC-SR04. Build the echo divider and explore pulse timing and PWM with full MicroPython code.
Build a 5 V LED switch with a 2N3904 transistor. Calculate base current, understand saturation and choose a base resistor without guessing.
Build an ESP32 Wi-Fi signal indicator with three LEDs. Understand RSSI, choose thresholds and handle missing networks with a complete Arduino sketch.
Watch a 470 µF capacitor charge through 10 kΩ at 5 V. Predict voltage, measure the RC time constant and explain differences from ideal results.
Build an ATtiny85 reaction game with two LEDs and a button. Learn timer interrupts, debounce and state machines with complete C firmware.
Build an ESP32 smart-room prototype with PIR motion, an LDR and DS18B20 temperature sensing. Includes wiring, MicroPython code and calibration.
Build a two-resistor voltage divider, then add a load and measure the drop. Includes a clear schematic, worked calculations and beginner challenges.
Measure LED current using the voltage across a resistor. Build a 5 V circuit, compare three resistor values, and learn what your meter is really reading.
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Explore these do-it-yourself project kits. Check the selected option, included parts and instructions on each offer.
Tricky Circuit may earn a commission if you buy through these Temu affiliate links. These are product ideas; they have not been bench-tested by Tricky Circuit and are not verified lesson parts lists.
Supplier product photo
Soldering required. Check the supplied parts and board revision.
Supplier product photo
Listing specifies 5-volt direct current. Soldering required; battery and glue not included.
Supplier product photo
Breadboard, wires and assorted parts. Arduino controller board not included.
Supplier product photo
Surface-mount soldering practice. Battery and battery holder not included.
Supplier product photo
Clock-and-case project kit. Soldering required; check included parts and power requirements.
Supplier product photo
Soldering and assembly required. Check battery and track requirements before buying.
