ChengXiaoZhi youth maker kits

ChengXiaoZhi is a series of six creative electronics kits for youth STEAM education and corporate gifts. Each kit runs on a Raspberry Pi RP2040, pairs a practical sensor with local processing and a display, and comes in a clear acrylic case with 120 minutes of teaching material. Name, logo, PCB silkscreen and packaging can be customized.

Kit board in a clear acrylic case with a red 7-segment display reading 6 and green status LEDs
UV detector kit

Tech stack

Main controller
Raspberry Pi RP2040
Kit 1 – UV detector
GUVA-S12SD UV sensor, 7-segment display
Kit 2 – Health monitor
Body temperature, heart rate and SpO2 sensing, OLED display
Kit 3 – Touch & sound
Vibration sensor, MP3 module
Kit 4 – Audio visualizer
MAX9814 microphone, 16-LED bar
Kit 5 – Light balance
Ambient light sensor, 16-segment LED bar
Kit 6 – Plant care
Soil moisture sensor, LED indicator, buzzer

What we built

  • Hardware design: schematic, PCB, component selection
  • Firmware for sensors, local processing and displays
  • Acrylic case and structural design
  • Assembly guide and tutorial video
  • 120-minute teaching materials per kit
  • Logo, colour and packaging customization

Development time

about 30 days for 6 kits (about 10 days per kit)

Photos and design files

Kit board in an acrylic case with an OLED showing body temperature, heart rate and oxygen readings
Health monitoring kit
Kit board in an acrylic case with an MP3 module and touch sensor
Touch & sound kit
Two kit boards with 16-LED bar displays and a microphone, green LEDs lit
Audio visualizer kit
Two kit boards with 16-segment light bars and a photoresistor
Light balance kit
Kit board with an OLED and a long probe printed 'FreakStudio', green LEDs lit
Plant care kit with soil probe
Video frame of a finger fixing the top acrylic plate onto a kit, with a Chinese assembly caption and player controls
Assembly tutorial video (Chinese)

All builds →

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Or email [email protected] · WhatsApp +1 (323) 719-3730