Numeric Display

These numeric displays can be used to display up to 4 digits.


Wire up

Wire up the display as follows:

Wire up
Display Pico
VCC 3V3
GND GND
SCL GP5 or another SCL pin
SDA GP4 or another SDA pin

Add the library

You need to add the Numeric LED library. Copy the adafruit_ht16k33 folder from the lib directory on github to the lib directory on the pico:

Add lib

Code

Write this code and download to the Pico.

See code on github 
# Test 7 segment led display
import board
import busio as io
import time
import adafruit_ht16k33.segments

# Create display object
i2c = io.I2C(board.GP5, board.GP4) # SCL, SDA
display = adafruit_ht16k33.segments.Seg7x4(i2c, address=0x70)

## Clear
display.fill(0)

# Display individual characters
display[0] = '8'
display[1] = '7'
display[2] = 'a'
display[3] = 'm' # some chars can't display
display.show()
time.sleep(2)

# Display number
display.print(1234)
display.show()
time.sleep(2)

# Display letters
display.print('DEAL')
display.show()
time.sleep(2)


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