Hardware Reset -> reset(1) might be broken

[ajowsey]

Within init(), reset(1) is called if a hardware reset is provided: } if (hardware) { // Check if bit 2 of REG_MISC is set // if so nReset will not issue a POR, we'll need to clear that bit first byte regMisc = readByte(REG_MISC); if (regMisc & (1 << 2)) { regMisc &= ~(1 << 2); writeByte(REG_MISC, regMisc); } // Reset the SX1509, the pin is active low pinMode(pinReset, OUTPUT); // set reset pin as output digitalWrite(pinReset, LOW); // pull reset pin low delay(1); // Wait for the pin to settle digitalWrite(pinReset, HIGH); // pull reset pin back high }

The bolded lines of code above assume your Arduino will reset the io expander using the gpio assigned to pinReset. Problem is that this library actually calls SX1509::digitalWrite() instead of the Arduino digitalWrite. So the hardware reset never occurs

[nseidle]

Thanks for reporting and I agree. I don't have a chance to fix it right now so if you do a PR, I would welcome it.

[ajowsey]

Fix coming in this sprint hopefully! will share :)

[nseidle]

Should be fixed in v3.0.4. Please check. Thanks for the PR!