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add uart #1

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add uart #1

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add uart
caseyjbrotherton Mar 11, 2023
0ec24ca
Fix comment line
caseyjbrotherton Mar 12, 2023
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39 changes: 33 additions & 6 deletions CircuitPy/code.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,14 +8,28 @@
import busio
import board


import adafruit_vl53l0x

# Initialize I2C bus and sensor.
i2c1 = busio.I2C(board.GP5, board.GP4)
vl53_1 = adafruit_vl53l0x.VL53L0X(i2c1)
sensor1Range = -2.0
sensor2Range = -2.0
Comment on lines +15 to +16
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@azvanderpas azvanderpas Mar 12, 2023

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Should these just be -2 so they don't get initialized as floating point values? If something weird happens and they fall through to the UART, it'll write a long floating point to string conversion (e.g. "-2.0000000"), won't it?

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@caseyjbrotherton caseyjbrotherton Mar 22, 2023

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good call, will change.


uart = busio.UART(board.GP0, board.GP1, baudrate=115200, bits=8, parity=None )

print("new version - uart")
try:
i2c1 = busio.I2C(board.GP5, board.GP4)
vl53_1 = adafruit_vl53l0x.VL53L0X(i2c1)
except:
print("No 1st sensor connected")
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@azvanderpas azvanderpas Mar 12, 2023

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Do these prints get saved anywhere where we could access them later? After a match for instance


i2c2 = busio.I2C(board.GP7, board.GP6)
vl53_2 = adafruit_vl53l0x.VL53L0X(i2c2)
try:
i2c2 = busio.I2C(board.GP7, board.GP6)
vl53_2 = adafruit_vl53l0x.VL53L0X(i2c2)
except:
print("No 2nd sensor connected")


# Optionally adjust the measurement timing budget to change speed and accuracy.
# See the example here for more details:
Expand All @@ -28,5 +42,18 @@

# Main loop will read the range and print it every second.
while True:
print("{0}, {0}".format(vl53_1.range, vl53_2.range))
time.sleep(1.0)
try:
sensor1Range = vl53_1.range
except:
sensor1Range = -1


try:
sensor2Range = vl53_2.range

except:
sensor2Range = -1
print("{0}, {1},".format(sensor1Range, sensor2Range))
uart.write(bytearray("{0}, {1},\r\n".format(sensor1Range, sensor2Range)))
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@azvanderpas azvanderpas Mar 12, 2023

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Why include the carriage return (\r)? Doesn't seem like the roboRIO code expects it


time.sleep(0.005)