A board that with ATmega328P, 16 Mhz, UNO Bootloader and the most common hardware.
No more wire messy Arduino™ projects. More things on board than you need? Just don't use them.
Perfect for just a monitor-controller, or as an IOT HUB for your next project, by using the WiFi module and the NRF24l01 to communicate with other devices in your home.
SD and EEPROM gives you more memory, that is always welcome, and the Clock can help the 'U1 ' to work as a logger. You can publish the log file in the web using the ESP8266 WiFi. Use the thousands of examples in the internet, and stop worrying about connecting hardware.
LCD, rotary, buttons, RGB led and buzzer are all working on a single library, using only 2 pins of ATMega328P. Many examples and manual is included.
Building menus and controlling them with the rotary and buttons has been made easy, by just building an Array with your menu.
Its time to work mostly on the software side, and keep the hardware simple.
ATmega328P, 16 Mhz, UNO Bootloader
LCD 20x4, with SPI IC
2 Front Push Bottons
RGB LED, Power LED
RTC Clock (DS3231) with battery
ESP8266 Plug with level shifter
2.1mm Power Jack, Input Voltage 7-12V
One Plug for SPI, I2C, external Shift Register
Power Plug with 3v3 and 5v0, powered by ams1117
LCD, Rotary, Push Bottons and Buzzer, are using only 2 pins, with a common easy library, a lot of examples are included.
Other USB to UART connected with wires. Note Rx of module with RX of U1
Custom PCB with 4 mosfet for Irrigation example. A 4 relay array was tested also.
U1 with Ethernet Sheild conneced.
U1 working with Mega. Remove the MCu on U1! Connect the U1 ISP pins one-to-one with the mega ISP pins. Connect A0 and A1 of U1 with A0 and A1 of Mega. Upload schetch on Mega.
U1 working with Mega. Schetch 'hello world' running on Mega.
U1 working with Mega. Schetch 'Clock' running on Mega. Please note that I2C pins must also be connected so the mega communicates with RTC (and EEPROM).
If you also need the SD card of the U1 to be connected with the Mega, you only need to connect pin D4 from U1 with pin D4 of Mega.
To connect U1 with 3.3v boards like DUE or ZERO, a level shifter must be used.