-
Hi!
This library has a strange behaviour. On code below uncomment `Wire.begin()` and the code won't work anymore.
```c
#include
PCF857x PCF8575(0x20, &Wire, true);
bool state = false;
v…
-
## Arrays
```
homie/super-car/$nodes → "lights[]"
homie/super-car/lights/$name → "Lights"
homie/super-car/lights/$properties → "intensity"
homie/super-car/lights/$array → "0-1"
homie/super-c…
-
I want to confirm that I have the following devices working properly with your code:
DS3231 (RTC)
AT24C32 (EEPROM)
BME680 (TEMP/PRES/HUMI/GAS SENSOR)
Noteworthy is, that I have all I2C communi…
-
In the files
- PCF8574.cpp
- PCF8575.cpp
- DS3231.cpp
you wait after the Wire.requesFrom(). That is not needed: [Common-mistakes#1](https://github.com/Koepel/How-to-use-the-Arduino-Wire-library/…
-
Hi all!,
I have a douby. I need to add some I/O to my Nodemcu, and I have 2 options:
-PCF8574 (+8 I/O)
-PCF8575 (+16 I/O)
1.- I wonder that if I need 2 bytes in order to read or write to the PCF…
ghost updated
6 years ago
-
I'am using the pcf8575 with the library with success, except the read16() function is not working properly. I get only the 8 low ports back and the 8 high ports are zero. Any idea what to do to resolv…
-
To make it work, change line
if(_Wire->requestFrom(_address, (uint8_t) 2) != 1)
to
if(_Wire->requestFrom(_address, (uint8_t) 2) != 2)
-
Not and issue - more like rfc/question.
Is anyone working or already done porting of PCF8575 expander library or make analysis of such possibility?
I want to avoid reinventing the wheel.
-
I have a prototype for mackie protocol controller that has multiple encoders controlling the same V-Pot output (controller 0x10 -0x17) but in different modes. (V-Pot is just mackie's name for the 8 en…
-
Hi!
I haven't enough pins in my controller and I need use some fake pin numbers to allow user select the right pin desired if not using a multiplexer.
The problem is that using the pin number as…