TechsPassion is the companion app for the TechsPassion YouTube channel: robots, ESP32, Arduino, Raspberry Pi and 3D printed builds you can make yourself.

🤖 ROBOT REMOTE
• Drive the TechsPassion Lite Robot over Wi-Fi with a live camera view
• Hold-to-drive D-pad, 3 speed gears, camera pan, Auto Pilot and radar scan
• Live distance, signal strength and obstacle warnings
• Automatic stop when you let go
• 🎮 Controller mode: a joystick and 4 buttons for any ESP32 robot you program yourself, and your robot can send messages back

🧮 FREE MAKER TOOLS (work offline)
• Ohm's law, LED resistor (with standard value and color bands)
• Resistor color code (4 and 5 band), capacitor codes (104 = 100 nF) and RC timing
• Voltage divider solver (5 V → 3.3 V for ESP32)
• Battery life incl. ESP32 deep sleep, ADC to voltage
• Servo & PCA9685 calculator: angle → pulse width, PCA9685 ticks, ESP32 duty and power supply size
• Arduino UNO R4 WiFi LED Matrix Designer: draw and share the sketch

📌 PINOUTS WITH THE GOTCHAS
Color-coded board diagrams for the ESP32, ESP32-S3, ESP32-C3, ESP8266, Arduino Uno and Nano, Raspberry Pi Pico and the Raspberry Pi 5 / 4 / 3 GPIO header. Tap any pin to see what it does, filter by I2C, SPI, ADC and more, and see the strapping pins, input-only pins and ADC2 + Wi-Fi conflicts that break beginner projects.

🎬 PROJECTS
The latest TechsPassion videos, build guides, code, parts lists, free 3D designs and the Discord community.

No account. No tracking. No ads.

The TechsPassion app is for educational purposes and provided "as is". Always verify against official datasheets and follow safety precautions. Arduino, ESP32 and Raspberry Pi are trademarks of their respective owners; the app is not affiliated with them.