WittyPi.md

Physical install

Mapping of WittyPi 2 & 3 Pins to Raspberry Pins

GPIO (BCM)	Name	Phycial PIN
2	SDA	3
3	SCL	5
4	GPIO 7	7
17	GPIO 0	11

• Double occupancy through BME680/BME280 (I2C: SDA&SCL) is no problem.

• The HoneyPi Button cannot be at GPIO17. Better would be GPIO16.

• 1-Wire default GPIO (used for DS18b20 sensors) must be switched to another GPIO (e.g. GPIO 11). It cannot stay at default value because GPIO4 is used from WittyPi.

• See p.37 in manual.pdf you can check the gpio states with gpio readall.

Mapping of WittyPi 4 Pins to Raspberry Pins

I2C Address: 0x08

GPIO (BCM)	Name	Phycial PIN	Description
2	SDA 1	3
3	SCL 1	5
4	GPIO 7	7
17	GPIO 0	11
14	TXD	8	high=system is on, low=system is off

Install WittyPi software on Raspbian

WittyPi 2 and WittyPi Mini

1. cd ~
2. wget http://www.uugear.com/repo/WittyPi2/installWittyPi.sh
3. sudo sh installWittyPi.sh
4. Skip -n fake-hwclock and Qt 5 GUI.
5. If Raspi 4 (Buster): Update WiringPi to the latest Raspbian Buster compatible version (>v2.52):
   • wget https://project-downloads.drogon.net/wiringpi-latest.deb
   • sudo dpkg -i wiringpi-latest.deb

WittyPi 3

1. cd ~
2. wget http://www.uugear.com/repo/WittyPi3/install.sh
3. sudo sh install.sh

Witty Pi 4 Mini

1. cd ~
2. wget https://www.uugear.com/repo/WittyPi4/install.sh
3. sudo sh install.sh

Set schedule script

1. Save script as schedule.wpi to /home/pi/wittyPi/schedule.wpi
2. Run cd /home/pi/wittyPi and sudo ./runScript.sh

Important files

/etc/init.d/wittypi

should contain correct paths