We have always wanted to make a real UPS, So PiSugar S Plus was launched.

PiSugar S Plus is the same as PiSugar 2 pro for Raspberry Pi 2/3A/3B/3B+/4B. But the function is less and simple than PiSugar 2 pro.

Hardware SPECS

• PowerIC: Injoince IP5312
• Type-c: charging port, with E-mark support
• MicroUSB: charging port
• PH2.0 Battery Plug
• Programable Tap Button

Features

• Simple Installation: PiSugar style, power from the back!
• Battery Plug: You can switch lithium battery by your own
• 3A Battery Output: meet the requirement of rpi 4B and more power consuming scenarios
• GPIO button: It can trigger the device to turn on when it is turned off, and it can be used as a custom button after turning on (when the automatic power-on function is turned off)

Hardware Installation

1. Turn the power switch to off
2. Attach pi-zero's back to the pin side of PiSugar2 Pro
3. Tighten the four screws (M2.5) from the pi-side
4. Turn on the power switch and enjoy!

Jumper

Connect the jumper

• Turn on the external power supply: SCL pin is low level.If the Raspberry Pi is turned off, the system will wake up. If the Raspberry Pi is turned on, the external power supply can be obtained by detecting the level. Since SCL is low during the existence of external power supply, I2C communication cannot be used.
• External power supply is not connected: SCL pin is high. If you press the button, the SCL pin can be triggered to low level. If the Raspberry Pi is in the shutdown state, the system will wake up.

Do not connect the jumper

• Whether the external power supply is connected or not does not affect the SCL pin.
• Pressing the button will trigger SCL to low level, and if the Raspberry Pi is off, it will wake up the system. If the Raspberry Pi is turned on, it can be used as a custom button. Because SCL is not continuously pulled down, I2C functions normally.

Function comparison

	PiSugar 1	PiSugar S	PiSugar S Plus	PiSugar 2	PiSugar 2 Pro
zero	Completely compatible	Completely compatible	Compatible	Completely compatible	Compatible
3A/3B/3B+/4B	Not Support	Compatible	Completely compatible	Compatible	Completely compatible
Use while charging	Support	Support	Support	Support	Support
Shut down while charging	Not Support	Support	Support	Support	Support
External power-off	Cause restart	Keep working	Keep working	Keep working	Keep working
External power off detection	Not Support	Support*	Support*	Support	Support
Automatic power on when external power is restored (battery is not exhausted)	Not Support	Support	Support	Support**	Support**
Automatic power on when external power is restored (battery is exhausted)	Support	Support	Support	Support	Support
RTC	Not Support	Not Support	Not Support	Support	Support
Timing boot	Not Support	Not Support	Not Support	Support	Support
Custom button	Not Support	Support***	Support***	Support	Support
Button to turn on	Support	Support	Support	Not Support	Not Support
Button to shut down	Support	Support***	Support***	Support	Support

*: Only supported when the automatic power-on function is turned on

**: Two independent power supplies are required

***: Refer to github function description

Charging (Same as PiSugar2)

Please use PiSugar's type-c or micro USB port for charging.

Notice

Pisugar S pro use I2C SCL gpio to startup the RaspberryPi system, so the automatic startup function and the custom button cannot be used together with I2C communication

Documents

Please refer to: https://github.com/PiSugar/pisugar-documents