UPS HAT for Raspberry Pi Zero - Waveshare 19739

TheUPSoverlay provides uninterrupted power to the Raspberry Pi Zero minicomputer, thanks to theLi-Polbattery, when the power from the Raspberry Pi Zero power supply fails, the overlay will maintain power using the battery. The output voltage from the overlay is5volts. The Raspberry Pi Zero is powered through thepogo pinslocated on the overlay. Additionally, the HAT allows you to charge the included battery pack through the microUSB connector. It uses I2C interface for communication, which allows to read battery parameters such as voltage, current consumption and percentage of charge.

The UPS HAT overlay is the subject of this sale, the Raspberry Pi Zero minicomputer can be purchased separately.

1. ETA6003 - power management chip
2. TPS61088 - voltage boost circuit
3. INA219 - voltage / current monitoring circuit
4. S8261 - Li-Pol protection circuit
5. FS8205 - Li-Pol protection MOS chip
6. Pogo pins - to connect the frontend with Raspberry Pi Zero
7. MicroUSB port - 5V input for Li-Pol charging
8. Battery connector - for connecting the Li-Pol 803040 battery pack
9. Power indicator
10. Charging indicator

The UPS HAT is equipped with pogo pins used to connect to the Raspberry Pi Zero. It uses I2C interface for communication. Its pinouts are:

• 3V3 - input voltage 3.3 V
• 5V - output voltage 5 V
• GND - system ground
• SDA - I2C bus data line
• SCL - I2C bus clock line

• Output voltage: 5 V
• I2C communication
• Mounting holes: 3 mm
• Charging voltage: 5 V via microUSB
• Battery: Li-Pol 803040 3.7 V 1000 mAh
• Dimensions: 65 x 30 mm

• UPS HAT
• Rechargeable battery 3.7 V 1000 mAh
• Set of screws and spacers

• Manufacturer's website: Waveshare 19739
• User guide
• Diagram
• Documentation INA219
• Documentation ETA6003
• TPS61088 Documentation
• Documentation S8261