Arduino UNO Compatible board to learn coding and microcontroller


We bring you the Maker-UNO, an Arduino UNO compatible board designed and developed specially for students to learn coding and microcontroller. We named it Maker UNO to encourage everyone to be a maker by getting started with this amazing board. Now you can start learning Arduino coding with Single Maker Uno Board without any Shield. Key specification:

– On Board Buzzer (Play melody)
– LEDs Indicator at every digital pin
– Programmable button

Maker UNO – Arduino UNO Compatible board developed to learn coding and microcontroller

We bring you the Maker-UNO, An Arduino UNO compatible board designed and developed specially for students to learn coding and microcontroller. We named it Maker UNO to encourage everyone to be a maker by getting started with this amazing board. Oh! BTW, it is PURPLE color.

We have removed the DC jack (12V adapter input) and the 5V linear regulator as 90% of the beginner and projects use 5V from USB only. So the board can be offered at more affordable price. But don’t get us wrong, Maker-UNO is not removing components, we actually design-in more components to help everyone to learn programming, coding and microcontroller. We added a piezo buzzer that will act as simple audio output, of course you can program it. Yet, to ensure the compatibility of Arduino UNO, we have also a slide switch to disable this piezo buzzer and leave the IO as it is.

Aside from the standard LED on pin 13, Maker-UNO comes with a programmable LED on every digital pin, from pin D0 to D13.

That is a lot of LEDs. We believe LEDs provide very good visual/light digital output where the eyes can observe, while piezo buzzer offers sound feedback where the ears can hear. That is good enough for outputs, how about input? We reserve the reset button and added a programmable button. How good is that? Now you can learn digital input, output, PWM (piezo buzzer and LED brightness) with just the Maker-UNO board.

Not to forget the change of FTDI chip to CH340 IC, the low cost yet stable USB to UART IC.

Maker-UNO combines the simplicity of the UNO Optiboot bootloader (which load program faster), the stability of the CH340 and the R3 shield compatibility of the latest Arduino UNO R3. Of course, we preserve the good feature on CT-UNO, the USB MicroB socket for program loading and to power the board. This enable everyone to utilize the USB cable of Android smart phone and power bank. Program can be loaded from your computer by utilizing your Android phone USB cable. Select “Arduino/Genuino UNO” for the “Board” in Arduino IDE and choose the correct COM port, you are ready to upload the code. If you do not have the Micro-B USB cable, please get it as it is sold separately.

Maker-UNO has all the amazing features Arduino UNO has been offered. 14 Digital I/O pins with 6 PWM pins, 6 Analog inputs, UART, SPI, external interrupts, not to forget the I2C too. The SDA, SCL and IOREF pins which being broken out on UNO R3 are on CT-UNO too. We has also populated the ISP header pins (SPI and power). With this, Maker-UNO will be compatible with all Arduino UNO shield.


– SMD ATmega328P microcontroller(the same microcontroller on Arduino UNO) with Optiboot (UNO) Bootloader
– USB Programming facilitated by the CH340
– Input voltage: USB 5V, from computer, power bank or standard USB adapter
– 500mA (maximum) 3.3V voltage regulator
– 0-5V outputs with 3.3V compatible inputs
– 14 Digital I/O Pins (6 PWM outputs)
– 6 Analog Inputs
– ISP 6-pin Header
– 32k Flash Memory
– 16MHz Clock Speed
– R3 Shield Compatible
– LED array for 5V, 3.3V, TX, RX and all digital pins
– Utilize USB Micro-B socket
– Purple PCB!


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