Comments (2)
Hi. The membrane keypad I was using is very similar to these.
https://www.ebay.com.au/i/133024948873
Not sure about the error. I've never used EPS devices.
Which file are using exactly?
https://github.com/BrendanSimon/micropython_experiments/blob/master/keypad/keypad_timer.py
It might be related to these issues. Looks like the Pin
object needs to have pin numbers, instead of strings (str
). I'm guessing that's a difference in API between pyb
and machine
.
https://www.tutorialfor.com/questions-289240.htm
micropython/micropython-esp32#33
from micropython_experiments.
Hey,
Thanks for the reply here! I was able to implement a much simpler solution, which I got from https://www.raspberrypi.org/forums/viewtopic.php?t=211657, which I re-wrote to work on the esp8266/esp32.
My only problem now is that the code works locally when my MAC is connected to the machine in upyCraft
- all keys get recognized by themselves (the only change I made to the wiring is I put in diodes to suppress potential ghosting) - It works even as a 1x1 or 1x2 matrix. However, when the code is in stand-alone mode with only power connected, the script isn't executing like it is when the board is connected.
from machine import Pin
import time
led = Pin(2, Pin.OUT)
matrix = [1, 2, 3, 4]
COL = [5, 12]
ROW = [0, 14]
for j in range(2):
#machine.Pin(COL[j], machine.Pin.OUT)
Pin(COL[j], Pin.OUT).value(0)
print("COL = ", Pin(COL[j]).value())
for i in range(2):
Pin(ROW[i], Pin.IN)
print("ROW =", Pin(ROW[i]).value())
while True:
for j in range(2):
Pin(COL[j]).value(1)
for i in range(2):
if Pin(ROW[i]).value() == 1:
print ("col = ",(j+1))
print ("row = ",(i+1))
m = ((i * 2) + j)
print ("postion = ",(m))
print ('button = ', matrix [m])
time.sleep(0.1)
while Pin(ROW[i]).value() == 1:
led.on()
time.sleep (0.2)
led.off()
Pin(COL[j]).value(0)
Sample output when board is first connected - then in REPL/upyCraft I get the below outputs when I press them.
COL = 0
COL = 0
ROW = 0
ROW = 0
Button 1 pressed
col = 1
row = 1
postion = 0
button = 1
Any ideas are of course welcome. I believe I have to wrap the whole thing in a function and somehow store the key_index or something.
from micropython_experiments.
Related Issues (3)
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