Ringo
An Educational DIY Mobile Phone
Ages 11+
LIMITED OFFER: Get a free Ringo casing
Pick your color at checkout
$162.49
$212.49
OUT OF STOCK
*Various network standards are used in different regions of the world. Ringo’s price varies based on its usage region since different network chipsets have different prices.
Mobile network compatibility
This version of CircuitMess Ringo works on the following network frequency bands:
• GSM/GPRS 850/900/1800/1900MHz
It will work in the following countries:
Europe – EU:
Austria, Belgium, Bulgaria, Cyprus, Czech, Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom, Croatia
Europe – non EU:
Albania, Andorra, Belarus, Bosnia & Herzegovina, Faroe Islands, Gibraltar, Guernsey and Alderney, Iceland, Jersey, Kosovo, Macedonia, Man (Island of), Moldova, Monaco, Montenegro, Norway, Russia, San Marino, Serbia, Svalbard and Jan Mayen Islands, Turkey, Ukraine, Vatican City State (Holy See)
Middle East:
Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen
Oceania:
Fiji, French Polynesia, Kiribati, Marshall Islands, Micronesia, New Caledonia, Papua New Guinea, Samoa, Samoa (American), Solomon (Islands), Tonga, Vanuatu
The Caribbean:
Anguilla, Aruba, Bahamas, Barbados, Bonaire, Saint Eustatius and Saba, British Virgin Islands, Cayman Islands, Cuba, Curaçao, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Montserrat, Saint-Barthélemy, St. Kitts and Nevis, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten, Turks and Caicos Islands
Central America:
Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
South America:
Argentina, Bolivia, Brazil, Chile, Colombia, Falkland Islands (Malvinas), French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela
North America:
Bermuda, Greenland, Saint Pierre and Miquelon
Asia:
Afghanistan, Armenia, Azerbaijan, Bangladesh, Bhutan, Brunei Darussalam, Cambodia, Georgia, Kazakhstan, Kyrgyzstan, Laos, Maldives, Mongolia, Nepal, Pakistan, Philippines, Sri Lanka (ex-Ceilan), Tajikistan, Timor Leste (West), Turkmenistan, Uzbekistan, Vietnam
Eastern Africa:
Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Mayotte, Reunion, Rwanda, Seychelles, Somalia, Tanzania, United Republic of Uganda
Middle Africa:
Cameroon, Central African Republic, Chad, Congo (Brazzaville)
Congo (Democratic Republic of the
Equatorial Guinea), Gabon, Sao Tome and Principe
Northern Africa:
Algeria, Egypt, Libyan Arab Jamahiriya, Morocco, South Sudan, Sudan, Tunisia, Western Sahara
Southern Africa:
Angola, Botswana, Eswatini (ex-Swaziland), Lesotho, Mozambique, Namibia, South Africa, Zambia, Zimbabwe
Western Africa:
Benin, Burkina Faso, Cape Verde, Cote d’Ivoire (Ivory Coast), Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Saint Helena, Senegal, Sierra Leone, Togo
This version of CircuitMess Ringo won’t work in the following countries:
Europe – non EU:
Liechtenstein, Switzerland
Oceania:
Australia, Guam, New Zealand
The Caribbean:
Antigua and Barbuda, Puerto Rico, Trinidad and Tobago, Virgin Islands (US)
South America:
Ecuador
North America:
Canada, Mexico, United States of America (USA)
Asia:
China, Hong Kong, India, Indonesia, Japan, Korea (South), Macao, Malaysia, Myanmar (ex-Burma), Singapore, Taiwan, Thailand
Mobile network compatibility
This version of CircuitMess Ringo works on the following network frequency bands:
• LTE-TDD B38/B40/B41
• LTE-FDD B1/B3/B5/B7/B8/B20
• UMTS/HSPA+ B1/B5/B8
• GSM/GPRS/EDGE B3/B8 (1800/900)
It will work in the following countries:
Europe – EU:
Austria, Belgium, Bulgaria, Cyprus, Czech, Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom, Croatia
Europe – non EU:
Albania, Andorra, Belarus, Bosnia & Herzegovina, Faroe Islands, Gibraltar, Guernsey and Alderney, Iceland, Jersey, Kosovo, Liechtenstein, Macedonia, Man (Island of), Moldova, Monaco, Montenegro, Norway, Russia, San Marino, Serbia, Svalbard and Jan Mayen Islands, Switzerland, Turkey, Ukraine, Vatican City State (Holy See)
Middle East:
Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen
Oceania:
Australia, Fiji, French Polynesia, Kiribati, Marshall Islands, Micronesia, New Caledonia, New Zealand, Papua New Guinea, Samoa, Solomon (Islands), Tonga, Vanuatu
The Caribbean:
Aruba, Barbados, Bonaire (Saint Eustatius and Saba), Cuba, Curaçao, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Saint-Barthélemy, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten
Central America:
Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
South America:
Falkland Islands (Malvinas), French Guiana, Guyana, Suriname
North America:
Greenland, Mexico, Saint Pierre and Miquelon
Asia:
Afghanistan, Armenia, Azerbaijan, Bangladesh, Bhutan, Brunei Darussalam, Cambodia, China, Georgia, Hong Kong, India, Indonesia, Japan, Kazakhstan, Korea (South), Kyrgyzstan, Laos, Macao, Malaysia, Maldives, Mongolia, Myanmar (ex-Burma), Nepal, Pakistan, Philippines, Singapore, Sri Lanka (ex-Ceilan), Taiwan, Tajikistan, Thailand, Timor Leste (West), Turkmenistan, Uzbekistan, Vietnam
Eastern Africa:
Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Mayotte, Reunion, Rwanda, Seychelles, Somalia, Tanzania, United Republic of Uganda
Middle Africa:
Cameroon, Central African Republic, Chad, Congo (Brazzaville), Congo (Democratic Republic of the Equatorial Guinea), Gabon, Sao Tome and Principe
Northern Africa:
Algeria, Egypt, Libyan Arab Jamahiriya, Morocco, South Sudan, Sudan, Tunisia, Western Sahara
Southern Africa:
Angola, Botswana, Eswatini (ex-Swaziland), Lesotho, Mozambique, Namibia, South Africa, Zambia, Zimbabwe
Western Africa:
Benin, Burkina Faso, Cape Verde, Cote d’Ivoire (Ivory Coast), Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Saint Helena, Senegal, Sierra Leone, Togo
This version of CircuitMess Ringo won’t work in the following countries:
Oceania:
Guam, American Samoa
The Caribbean:
Anguilla, Antigua and Barbuda, Bahamas, British Virgin Islands, Cayman Islands, Dominica, Dominican Republic, Montserrat, Puerto Rico, St. Kitts and Nevis, Saint Lucia, Trinidad and Tobago, Turks and Caicos Islands, Virgin Islands (US)
South America:
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Paraguay, Peru, Uruguay, Venezuela
North America:
Bermuda, Canada, United States of America (USA)
Mobile network compatibility
This version of CircuitMess Ringo works on the following network frequency bands:
• LTE-TDD B40
• LTE-FDD B1/B2/B3/B4/B5/B7/B8/B28
• UMTS/HSPA+ B1/B2/B5/B8
• GSM/GPRS/EDGE 850/900/1800/1900MHz
It will work in the following countries:
Europe – EU:
Austria, Belgium, Bulgaria, Cyprus, Czech, Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom, Croatia
Europe – non EU:
Albania, Andorra, Belarus, Bosnia & Herzegovina, Faroe Islands, Gibraltar, Guernsey and Alderney, Iceland, Jersey, Kosovo, Macedonia, Man (Island of), Moldova, Monaco, Montenegro, Norway, Russia, San Marino, Serbia, Svalbard and Jan Mayen Islands, Switzerland, Turkey, Ukraine, Vatican City State (Holy See)
Middle East:
Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen
Oceania:
Australia, Fiji, French Polynesia, Guam, Kiribati, Marshall Islands, Micronesia, New Caledonia, New Zealand, Papua New Guinea, Samoa, Samoa (American), Solomon (Islands), Tonga, Vanuatu
The Caribbean:
Anguilla, Antigua and Barbuda, Aruba, Bahamas, Barbados, Bonaire, Saint Eustatius and Saba, British Virgin Islands, Cayman Islands, Cuba, Curaçao, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Montserrat, Saint-Barthélemy, St. Kitts and Nevis, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten, Trinidad and Tobago, Turks and Caicos Islands
Central America:
Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
South America:
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Falkland Islands (Malvinas), French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela
North America:
Bermuda, Greenland, Mexico, Saint Pierre and Miquelon
Asia:
Afghanistan, Armenia, Azerbaijan, Bangladesh, Bhutan, Brunei Darussalam, Cambodia, Georgia, Hong Kong, India, Indonesia, Japan, Kazakhstan, Korea (South), Kyrgyzstan, Laos, Macao, Malaysia, Maldives, Mongolia, Myanmar (ex-Burma), Nepal, Pakistan, Philippines, Singapore, Sri Lanka (ex-Ceilan), Taiwan, Tajikistan, Thailand, Timor Leste (West), Turkmenistan, Uzbekistan, Vietnam
Eastern Africa:
Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Mayotte, Reunion, Rwanda, Seychelles, Somalia, Tanzania, United Republic of Uganda
Middle Africa:
Cameroon, Central African Republic, Chad, Congo (Brazzaville), Congo (Democratic Republic of the Equatorial Guinea), Gabon, Sao Tome and Principe
Northern Africa:
Algeria, Egypt, Libyan Arab Jamahiriya, Morocco, South Sudan, Sudan, Tunisia, Western Sahara
Southern Africa:
Angola, Botswana, Eswatini (ex-Swaziland), Lesotho, Mozambique, Namibia, South Africa, Zambia, Zimbabwe
Western Africa:
Benin, Burkina Faso, Cape Verde, Cote d’Ivoire (Ivory Coast), Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Saint Helena, Senegal, Sierra Leone, Togo
This version of CircuitMess Ringo won’t work in the following countries:
Europe – non EU:
Liechtenstein
The Caribbean:
Puerto Rico, Virgin Islands (US)
North America:
Canada, United States of America (USA)
Asia:
China
Mobile network compatibility
This version of CircuitMess Ringo works on the following network frequency bands:
• LTE-FDD B2/B4/B12
• UMTS/HSPA+ B2/B5
It will work in the following countries:
North America:
United States of America (USA), Bermuda, Canada, Mexico
Oceania:
Guam, American Samoa
The Caribbean:
Anguilla, Bahamas, Puerto Rico, Trinidad and Tobago, Virgin Islands (US)
Central America:
Belize, Guatemala, Honduras, Nicaragua, Panama
South America:
Colombia, Ecuador
This version of CircuitMess Ringo won’t work in the following countries:
All countries located in Europe
All countries located in Middle East
Oceania:
Australia, Fiji, French Polynesia, Kiribati, Marshall Islands, Micronesia, New Caledonia, New Zealand, Papua New Guinea, Samoa, Solomon Islands, Tonga, Vanuatu
The Caribbean:
Antigua and Barbuda, Aruba, Barbados, Bonaire, Saint Eustatius and Saba, British Virgin Islands, Cayman Islands, Cuba, Curaçao, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Montserrat, Saint-Barthélemy, St. Kitts and Nevis, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten, Turks and Caicos Islands
Central America:
Costa Rica, El Salvador
South America:
Argentina, Bolivia, Brazil, Chile, Falkland Islands (Malvinas), French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela
North America:
Greenland, Saint Pierre and Miquelon
All countries located in Asia
All countries located in Africa
Free Worldwide Tracked Shipping
Lifetime Support
Made in The EU
Pay by PayPal or credit card
OVER $300K RAISED ON KICKSTARTER
Thanks to 2,154 awesome backers, we were successfully funded on Kickstarter!
AS SEEN ON…
Make your own mobile phone
Learn STEM while programming
Hack it!
Join a vast maker community
This neat little device is an open source mobile phone that you can build yourself.
Besides that, 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 get inside your box:
- Ringo circuit board – the main board that connects all the components in a uniform device that can work as a mobile phone
- Ringo casing – multiple sheets of acrylic cut with the power of lasers. They protect the innards and give Ringo this sleek look
- 128*160 full color TFT LCDÂ – for playing games, displaying phone numbers and everything in between
- GSM module – a tiny module responsible for everything related to calling and texting other people
- Main microcomputer module – a dual core processor with built-in Wi-Fi, BLE, and a charging circuit
- Sound module – a board with a DAC (digital to analog converter) chip and a headphone jack for music playback (responsible for ringtones, alarms, game sound effects)
- Amplifier module – makes loud buzzes, bleeps and bloops
- Stick-on antenna – for superb phone signal (a.k.a. send text messages while in the bathroom)
- 4GB Micro SD card – preloaded with games and apps
- A bag with other tiny electronic components
“If you are looking for a perfect father-daughter project,
then we definitely recommend you pick up Ringo.“
Who is this kit for?
Based on our experience, an 11-year-old kid should be able to assemble a Ringo kit with a tiny bit of help from an adult. Estimated build time: 5 hours.
Building the Ringo kit is just the beginning.
After that, you’ll spend numerous hours creating your own games and apps and experimenting with hardware.


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 schematics
Check out the 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!)
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.
Ringo is in color!




Ringo has games!


“A rather interesting DIY kit, and it is kind of fun.
It’s pretty cool to be able to make your own mobile phone.“
Ringo is hackable
Ringo is based on Arduino-compatible ESP32 microcontroller. Therefore, it’s compatible with lots of hardware expansion modules.
Ringo was meant to be hacked.
Ringo is fully customizable.


CircuitBlocks
A dedicated graphical code editor similar to Scratch or Code.org.
Getting started with coding was never easier!

CircuitOS
CircuitOS is our custom-made operating system built on top of FreeRTOS. Currently it only works on our CircuitMess Ringo DIY mobile phone, but we plan to adapt it for all of our current and future products.


Ringo has a build guide
CircuitMess Resources is a place for Ringo users to share their creations, exchange knowledge, and download programs made by others as well as a collection of tutorials, guides etc.

Ringo ♥ Arduino
YES, we love Arduino.
Ringo is based on Arduino-compatible ESP32 microcontroller.
Therefore, it can be programmed in Arduino IDE (based on C/C++) – the most popular programming environment for makers.

Ringo
An Educational DIY Mobile Phone
Ages 11+
LIMITED OFFER: Get a free Ringo casing
Pick your color at checkout
$162.49
$212.49
OUT OF STOCK
Contact us here!
*Various network standards are used in different regions of the world. Ringo’s price varies based on its usage region since different network chipsets have different prices.
