Arduino Micro Pro Lcd I2c
DOWNLOAD LINKRELATED COMPILERCONTAINS. lib. src.
Arduino Pro Mini Hardware Serial
The Sparkfun Arduino Pro Micro is a tiny board with all surface mount parts. A Sparkfun Pro Micro on a breadboard driving an I2C display. As an experiment we connected the I 2C LCD display to the Arduino Pro Micro, and of course.
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Arduino I2c Lcd Example
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Microtype Pro
Sparkfun Pro MicroThe Sparkfun Arduino Pro Micro is a tiny board with all surface mount parts. It has the ATmega32U4 from theLeonardo, and no frills at all. It runs on 5V at 16MHz. There is a 3.3V version that runs at 8MHz.
There are'only' 12 digital I/O lines, but that is a little misleading since the RX and TX lines are not counted as part ofthe 12. More important for some tasks, 11, 12, and 13 are missing. They are replaced by 14, 15, and 16,which may or may not make a difference in your code.
SS, on 17, is being used for the transmit LED, and is notbrought out to a pin. Also, don't freak out about there not being anything marked SDA and SCL. They are on pins2 & 3 respectively. Sparkfun's Arduino Pro Micro on a breadboardThe bootloader is the Caterina bootloader, from the Leonardo, which would normally wait 8 seconds after reset toenter user mode. Sparkfun has modified it to always go into user mode unless the reset is pushedtwice. Then it will enter bootloader mode and wait 8 seconds before entering user mode. It takes somegetting used to, especially since there is no reset switch.If you are going to use the Pro Micro on a breadboard, you have to use some type of pins.
We use machined pin, maleheaders. They don't get stuck in the breadboard holes like the square post headers do, and they leave a post on topfor hanging a scope probe. That really helps a lot.The Arduino Pro Mini and especially the Arduino Pro Micro make ideal boards when you have a circuit that is themain focus, and you just need an MCU to bang it around with. Plug one in, attach one cable, and go. Wonderful littledevices.The board is not without it's idiosyncracies. When you upload a sketch, the board is reset, and goes into thebootloader for 'less than 752mS'. The problem is that with the ATmega32U4, when it goes into the bootloader, theport sort of disappears from your computer.
The result on Windows is that you may need to wait for the port toshow up again before you can open the serial monitor. On a Mac, the result is an error being thrown showing '.theport is in use.'
After about every upload. It isn't, and everything works, it just shows an error.