This neat little device is an open-source mobile phone that you can build yourself.

Ringo is also an educational device shaped like a mobile phone compatible with all mobile networks.

Its purpose: to motivate people to explore, learn and create something new in a fun and interesting way.

What you’ll learn with Ringo - how to solder properly - what are the basic electronic components and what are their functions - what are microcontrollers and some basics of digital electronics - how to program a microcontroller in C++, Python and other - how a basic mobile phone works

**Ringo has a build guide

Find easy-to-follow step-by-step instructions on our webpage.

The assembly takes around 5 hours and it is appropriate for ages 11+

Ringo needs tools

You’ll need some basic tools and equipment for assembling your Ringo: - regular soldering iron (nothing super expensive is required) and some solder - diagonal cutter pliers - regular screwdriver - some solder - a piece of insulating tape or some super-glue

Or you can buy a kit with a tool pack already included.

SPECS

Microcontroller ESP32 with Xtensa dual-core 32-bit LX6 microprocessor, operating at 160MHz and performing at up to 600 DMIPS. 4MB of built-in flash memory + 520kB of SRAM.

Display 1.8″, 160*128px full color (RGB 16bit). 25FPS refresh rate by default, up to 50FPS. Digitally controllable backlight level.

Sound 10bit dedicated DAC (TFA9882). Multi-channel WAV playback. 2W class-D audio amp, audio jack 3.5mm, 1W speaker, software volume control.

Input 4-way analog joystick, 12-button numeric keypad, A (confirm), B (back), 4 multi-purpose addressable buttons.

Micro SD card socket FAT and FAT32 compatible. Every console comes with a 4GB Micro SD card with Ringo-compatible games and apps preloaded!

Network Built in Wi-Fi 802.11 b/g/n and Bluetooth v4.2 BR/EDR and BLE. SIM800L or SIM7600 dedicated cellular network co-processor (the thing that calls other people).

Micro SIM card slot.

Battery LiPo 3.7V 1300mAh, charged through micro USB B port. Sufficient for approximately 3 days of normal use.

RTC (real time clock) DS1307 Accurate I²C-Integrated RTC – this thing keeps time and takes care of alarms.

Extras 8 individually-controllable RGB LEDs mounted on the back of the phone – for signalisation and cosmetic purposes (IT GLOWS!)