robot junky
Canada
Asked
Any info on using MCP23017 i2c chip? I try to run a simple loop counter with prestart setup (i2c chip i2cwrite(0,0x40,0x3) i2cwrite(0,0x4E,0x3) ),output ( i2cwrite(0,0x40,$motor1) i2cwrite(0,0x4E,$motor2) ) with a loop and variable scrip and it just disconnects!
Related Hardware (view all EZB hardware)
EZ-B V4
by EZ-Robot
EZ-B v4/2 robot controller: dual Cortex ARM, Wi-Fi, audio/video, 24 servo/digital ports, I2C/UART, camera and Synthiam ARC control for custom robots
Wi-Fi / USB
Servos
24
Camera
Audio
UART
3
I2C
ADC
8
Digital
24
Q1) Can you provide a wiring ?
Q2) are you using EZB v4, if yes why you need a 16 bit Port Expander?
Q3) What are you connecting to the port expander ?
Q4) if no wiring, provide more details regarding the setup is a shield or a breadboard ? Are you using i2c pullups ?
And use i2cwritebinary command