If leadzero = 0: #if leading zero deselectedĭIO = Pin('X1',Pin.IN,Pin.PULL_UP) #dio highĬLK = Pin('X2',Pin.IN,Pin.PULL_UP) #clk highĬmd = cmd > 1 #rotate next bit into positionĬLK = Pin('X2',Pin.OUT_PP) #do 9th clock pulseĭIO = Pin('X1',Pin.IN,Pin. #display 4-digit number in hex - use bool to select leading zero The TM1637 chip also has keyboard input capability, but its not implemented in this library. tm1637 tm1637display Updated C mcore1976 / thermometer-LM35-TM1637 Star 3. # 0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,h,l,p,3-lines,blankįont = An Arduino library for 7-segment display modules based on the TM1637 chip, such as Seeed Studios Grove 4 digit display. Simple and cross-platform library for interfacing TM1637 four-digit seven-segment indicators. Here's the PyBoard TM1637 demo code: from pyb import Pin

There is a method of doing fast pseudo-interrupt polling that I might play with later Adafruit hasn't implemented any interrupts in CircuitPython yet, so the encoder has to be polled.

In this pic I'm using a quadrature encoder to increment and decrement a counter, and displaying the number on the TM1637. Porting my code to CircuitPython on the Trinket M0 and the Adafruit libs was different enough that I basically had to start learning all over again. I had gotten fairly comfortable with MicroPython and the PYB library on the PyBoard. So I ditched that idea and just got the display working on the Trinket M0. Worked away at the code for a while before realizing that the Trinket M0 doesn't have an RTC. That worked fine, so I thought I would get it going on the Trinket M0. Then I modified that code to use the PyBoard's RTC to work as a clock. The code is basically I2C with no slave, so not terribly difficult to bit-bang. I wrote some code for the PyBoard to drive a TM1637 4-digit 7-segment LED display.

Tm1637 pic library