I just Started with the Portenta (Machine Control), im a big fan of Python specially when i already have a running version of the program in python
im able to upload in the the H7 with openMV and use the onboard LED,
now im looking for documentation ( if it is posible ) to get in too the "Machine control board"
Check with your source for the Portenta (Machine Control), I would expect to be part of the package when you purchased it. The schematic is published at this: https://content.arduino.cc/assets/AKX00032-schematics.pdf that should have all the information you need.
import pyb # Import module for board related functions
from pyb import Pin
gpio0 = Pin('PI6', Pin.OUT_PP, Pin.PULL_NONE)
gpio1 = Pin('PH9', Pin.OUT_PP, Pin.PULL_NONE)
gpio2 = Pin('PJ9', Pin.OUT_PP, Pin.PULL_NONE)
while True:
gpio0.on()
pyb.delay(100)
gpio0.off()
gpio1.on()
pyb.delay(100)
gpio1.off()
gpio2.on()
pyb.delay(100)
gpio2.off()
Thanks That was easier then it looked
maping the "DIGITAL OUTPUTS" was easy to understand but im still unable to understand the other ports, input, I/O, Analog
// EDIT i found the anolog read
adc0 = ADC(Pin('PC3'))
adc1 = ADC(Pin('PC2'))
adc2 = ADC(Pin('PA1'))
print("Analog value0:", adc0.read())
print("Analog value1:", adc1.read())
print("Analog value2:", adc2.read())
i made some progress able to read 2nd until 8th digital pin with that
but during testing the 24V+ fell out of my hand and arced somewhere on the board 3v3 power is gone even directly connected to the H7 there is nothing, it will be a couple days until the new one arrives
I2C_ADDRESS = 0x23
# Initialize I2C communication
i2c = SoftI2C(sda=Pin('PH8'), scl=Pin('PH7'), freq=100000)
# Read the input states from the GPIO expander
def read_input_states():
i2c.writeto(I2C_ADDRESS, bytes([0])) # Send command to read input states
input_states = i2c.readfrom(I2C_ADDRESS, 1) # Read 3 bytes for input states
return input_states
input_pins = ["Input 05", "Input 04", "Input 03", "Input 3", "Input 02", "Input 01", "Input 07", "Input 06", "Input 8"]
while True:
input_states = read_input_states()
print("Input states:", input_states)
# Interpret input states
active_inputs = []
for bit_position in range(8):
if input_states[0] & (1 << bit_position):
active_inputs.append(input_pins[bit_position])
if active_inputs:
print("Active input pins:", active_inputs)
else:
print("No active input pins.")
im currently reading down a rabit hole of how to get it to work when the new board arrives
after digging in the the arduino IDE lib "Arduino_MachineControl.h"
and reading all the files i think i have all the different addresses
#define TCA6424A_ADDRESS_ADDR_LOW 0x22 // address pin low (GND)
#define TCA6424A_ADDRESS_ADDR_HIGH 0x23 // address pin high (VCC)
#define TCA6424A_DEFAULT_ADDRESS TCA6424A_ADDRESS_ADDR_LOW
#define TCA6424A_RA_INPUT0 0x00
#define TCA6424A_RA_INPUT1 0x01
#define TCA6424A_RA_INPUT2 0x02
#define TCA6424A_RA_OUTPUT0 0x04
#define TCA6424A_RA_OUTPUT1 0x05
#define TCA6424A_RA_OUTPUT2 0x06
#define TCA6424A_RA_POLARITY0 0x08
#define TCA6424A_RA_POLARITY1 0x09
#define TCA6424A_RA_POLARITY2 0x0A
#define TCA6424A_RA_CONFIG0 0x0C
#define TCA6424A_RA_CONFIG1 0x0D
#define TCA6424A_RA_CONFIG2 0x0E
#define TCA6424A_AUTO_INCREMENT 0x80
#define TCA6424A_LOW 0
#define TCA6424A_HIGH 1
#define TCA6424A_POLARITY_NORMAL 0
#define TCA6424A_POLARITY_INVERTED 1
#define TCA6424A_OUTPUT 0
#define TCA6424A_INPUT 1
#define TCA6424A_P00 0
#define TCA6424A_P01 1
#define TCA6424A_P02 2
#define TCA6424A_P03 3
#define TCA6424A_P04 4
#define TCA6424A_P05 5
#define TCA6424A_P06 6
#define TCA6424A_P07 7
#define TCA6424A_P10 8
#define TCA6424A_P11 9
#define TCA6424A_P12 10
#define TCA6424A_P13 11
#define TCA6424A_P14 12
#define TCA6424A_P15 13
#define TCA6424A_P16 14
#define TCA6424A_P17 15
#define TCA6424A_P20 16
#define TCA6424A_P21 17
#define TCA6424A_P22 18
#define TCA6424A_P23 19
#define TCA6424A_P24 20
#define TCA6424A_P25 21
#define TCA6424A_P26 22
#define TCA6424A_P27 23
for anyone who will ever need it
using python to control outputs (will make an edit soon to add the input)
import pyb # Import module for board related functions
from pyb import Pin,ADC
from machine import SoftI2C
import time
I2C_ADDRESS22 = 0x22
i2c = SoftI2C(sda=Pin('PH8'), scl=Pin('PH7'), freq=100000)
class I2CIO:
def __init__(self, address, i2c, pin , pintype):
if pin == 4:
pin = 7
elif pin == 5:
pin = 6
elif pin == 6:
pin = 5
elif pin == 7:
pin = 4
reg_addr = 0x00 + (pin // 8) # TCA6424A_RA_OUTPUT0 + (pin / 8)
bit_num = pin % 8
self.address = address
self.reg_addr = reg_addr
self.bit_num = bit_num
self.i2c = i2c
self.write_setup(pintype)
if pintype==0:
self.off()
# setup pin
def write_setup(self, pintype):
b = i2c.readfrom_mem(self.address, self.reg_addr+12, 1)[0]
if pintype != 0:
b |= (1 << self.bit_num)
else:
b &= ~(1 << self.bit_num)
i2c.writeto_mem(self.address, self.reg_addr+12, bytes([b]))
return b
def on(self):
self.write_output(1)
def off(self):
self.write_output(0)
def write_output(self, value):
b = i2c.readfrom_mem(self.address, self.reg_addr+4, 1)[0]
if value != 0:
b |= (1 << self.bit_num)
else:
b &= ~(1 << self.bit_num)
i2c.writeto_mem(self.address, self.reg_addr+4, bytes([b]))
return b
DO_0 = Pin('PI6', Pin.OUT_PP, Pin.PULL_NONE)
DO_1 = Pin('PH9', Pin.OUT_PP, Pin.PULL_NONE)
DO_2 = Pin('PJ9', Pin.OUT_PP, Pin.PULL_NONE)
DO_3 = Pin('PE2', Pin.OUT_PP, Pin.PULL_NONE)
DO_4 = Pin('PI3', Pin.OUT_PP, Pin.PULL_NONE)
DO_5 = Pin('PI2', Pin.OUT_PP, Pin.PULL_NONE)
DO_6 = Pin('PD3', Pin.OUT_PP, Pin.PULL_NONE)
DO_7 = Pin('PA14', Pin.OUT_PP, Pin.PULL_NONE)
ProCH00 = I2CIO(I2C_ADDRESS22, i2c, 0,0)
ProCH01 = I2CIO(I2C_ADDRESS22, i2c, 1,0)
ProCH02 = I2CIO(I2C_ADDRESS22, i2c, 2,0)
ProCH03 = I2CIO(I2C_ADDRESS22, i2c, 3,0)
ProCH04 = I2CIO(I2C_ADDRESS22, i2c, 4,0)
ProCH05 = I2CIO(I2C_ADDRESS22, i2c, 5,0)
ProCH06 = I2CIO(I2C_ADDRESS22, i2c, 6,0)
ProCH07 = I2CIO(I2C_ADDRESS22, i2c, 7,0)
ProCH08 = I2CIO(I2C_ADDRESS22, i2c, 8,0)
ProCH09 = I2CIO(I2C_ADDRESS22, i2c, 9,0)
ProCH010 = I2CIO(I2C_ADDRESS22, i2c, 10,0)
ProCH011 = I2CIO(I2C_ADDRESS22, i2c, 11,0)
print ("____ SETUP complete_____")
while True:
pausetime = 200
DO_0.on()
pyb.delay(pausetime)
DO_0.off()
DO_1.on()
pyb.delay(pausetime)
DO_1.off()
DO_2.on()
pyb.delay(pausetime)
DO_2.off()
DO_3.on()
pyb.delay(pausetime)
DO_3.off()
DO_4.on()
pyb.delay(pausetime)
DO_4.off()
DO_5.on()
pyb.delay(pausetime)
DO_5.off()
DO_6.on()
pyb.delay(pausetime)
DO_6.off()
DO_7.on()
pyb.delay(pausetime)
DO_7.off()
ProCH00.on()
pyb.delay(pausetime)
ProCH00.off()
ProCH01.on()
pyb.delay(pausetime)
ProCH01.off()
ProCH02.on()
pyb.delay(pausetime)
ProCH02.off()
ProCH03.on()
pyb.delay(pausetime)
ProCH03.off()
ProCH04.on()
pyb.delay(pausetime)
ProCH04.off()
ProCH05.on()
pyb.delay(pausetime)
ProCH05.off()
ProCH06.on()
pyb.delay(pausetime)
ProCH06.off()
ProCH07.on()
pyb.delay(pausetime)
ProCH07.off()
ProCH08.on()
pyb.delay(pausetime)
ProCH08.off()
ProCH09.on()
pyb.delay(pausetime)
ProCH09.off()
ProCH010.on()
pyb.delay(pausetime)
ProCH010.off()
ProCH011.on()
pyb.delay(pausetime)
ProCH011.off()