Wiring Guide Raspberry Pi Zero

Serial connection (UART)

To connect using a serial connection, the ground pin (black), tx(white), and rx(green) are required to be plugged in while power(red) is only needed if you want to power the device using serial connection.

Pins 8 and 10 on the pi are tx(white) and rx(green) respectively.

You can connect to the board via putty using this connection.

Battery babysitter

To provide power from the battery babysitter, the vout pins need to be plugged into pins 4 and 6, with red on the top. For I2C, sda plugs into pin 3, while scl plugs into pin 5. gnd and vpu also need to be plugged in.

Sample Pinout for running off of battery with i2c connection

Pins 1 and 2 are on the side where the SD card is and the numbers go down vertically, with odd numbers on the left side and even numbers on the right side.

Pin left side	Purpose	Pin right side	Purpose
1	N/A	2	i2c VPU
3	i2c SDA	4	Battery Babysitter v+
5	i2c SCL	6	Battery Babysitter v-
7	N/A	8	Serial TX(white wire)
9	i2c ground	10	Serial RX(green wire)
11	N/A	12	N/A
13	N/A	14	Serial ground
15-39	N/A	16-40	N/A