UPS3

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UPS HAT V3 Front View
UPS HAT V3 Back View
UPS HAT V3 Interface
UPS HAT V3 Interface
UPS 3 PCB Layout

Overview

UPS3 is the upgrade version of UPS2, we solve some questions of UPS2.

NOTE: UPS 3 ONLY supports Linux OS, DON'T use UPS 3 on windows OS.

QC charge

Features

  • Raspberry Pi standard HAT size, all components under the PCB board, and the use of 5mm high female socket, can reduce the thickness of the expansion board, easy to put into the shell. You can use the header to increase the height.
  • Equipped with a custom long header (This is optional accessories)
  • Supports power supply of TYPE-C.
  • Type-C power supply interface is compatible with a variety of fast charge standard PD2.0/QC3.0/QC2.0 (5V/3A); Default 3A charging current, integrated chip will intelligently adjust the charging current according to the battery and power capabilities
  • Up to maximum 3A current output;
  • Long press power button 2 seconds to power on / off
  • With 4 LED power indicator (controlled by program, please refer to User Manual)
  • Supports AUTO POWER ON function (need to select the AUTO UPS switch to ON)
  • Use TI battery monitoring IC with patented Impedance Track algorithm
  • Support I2C communication to read battery capacity, voltage, charge status and battery life (please refer to status.py)
  • With charge and discharge protection and overheat protection
  • The capacity of Lithium Battery MUST be more than 2500mAh, you can use the more big capacity battery. PS: Voltage must be 3.7V. The connector specification is: PH 2.02-PIN connector

Packing List

  • 1 x UPS HAT 3 Board

User Manual

The charge level indicators (RGB LED) is controlled by program, script please refer to Github: https://github.com/geekworm-com/ups3

FAQ

Q1: Customer feedback 1: I have an issue with UPS hat 3. I tried to use battery from the old tablet and pack of cells, but none of them work well and the raspberry is turning off about 0.5 to 1 second after disconnecting the power. I'm not sure, that it's problem of batteries or hat itself. Do you have any suggestions what is wrong? Could you suggest which batteries works best?

A: I guess, I found the reason why the UPS hat is not working properly. My raspberry pi is overclocked to 2.0GHz and also has increased voltage. When I use the defaults voltage and clock values in the configuration file it works better, but still I think my batteries are too weak. I'll do more tests and let you know. Currently, I find it important to note that overclocking is bad for the condition of the UPS 3 hat.

Q:Is it allowed to supply 12VDC directly to VCC and GND wires of the USB-connector ?

A: Yes, it is ok to use 12VDC directly.


Q2: We want automatic shutdown when the external AC power supply is disconnected, is possible?

A: Yes. you can program a script to get this function. Example (The following is a pseudo code):


while (1) {
  // invoke the API to get AC PSU status: connected or disconnected
  int disconnected_flag = getACPSUStatus(); 	// please refer to the user manual to achieve getACPSUStatus function;
  int battery_voltage = getBatteryVoltage();    // please refer to the user manual to achieve getBatteryVoltagefunction;
  
  // You can make your own actions based on disconnected_flag and battery_voltage, you can only select one condition also
  if (disconnected_flag) {
    // execute linux or software shutdown command
  } 

  sleep(10);
}


Q3: How to restart the pi board when AC Power supply is connected?

A: Please enable 'AUTO POWER ON' or 'AUTO ON' function if you want restart when the AC Power supply is reapplied.

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Xiali

12 days ago
Score 0++

Hi dear ,Glad to receive your message 1. The battery power is decreasing. It may be the voltage change during charging. The measuring chip is recalculating the power. The light is red to indicate that it is charging. Check the power situation after a while. If the power keeps dropping, try another power cord. 2. The automatic power-on function means that when you turn on the "auto on" switch, when the external power supply is connected, the Raspberry Pi will be powered on. The switch button controls 3. There are many Raspberry Pi fans exchange experiences on our official website, you are welcome to join us

https://geek...munity/forum

Anonymous user #7

18 days ago
Score 0++
Where do you enable 'auto power on' or 'auto on' functions?

Rwagnon

22 days ago
Score 0++
Can it be powered / charged by header pins (5v/gnd) - this would allow PoE hat.

Anonymous user #6

one month ago
Score 0++

The UPS hat stops charging the battery once the main power is reconnected. If I shutdown the raspberry Pi and restart HAT either with push button or with the auto-power switch, only then SOC% start increasing in the log(battery really starts charging). Details below:

Steps & Observation: 1. Raspberry Pi powered via HAT and battery is charging, log file shows SOC% going up. 2. Power is disconnected from HAT USB-C 3. Raspberry Pi still remains operational as expected. log file shows SOC% dropping as expected with status:discharging 4 HAT USB-C is supplied power again (doesn't matter on the auto-power switch state) 5. Raspberry Pi still remains operational. log file shows:

smartups.log: INFO Input:Connected , ChargeStatus: Charging , SOC:44%. <== SOC continue to drop

Anonymous user #6

17 days ago
Score 0++
It turned out to be the power supply issue. Replacing it with recommended 18W+ power supply with PD or QC fast charging support resolved.

Anonymous user #5

one month ago
Score 0++

This Hat helped with the power problems I had with my Pi setup. I'm very pleased so far. I am unable to get the battery test to work, ill try to figure that out soon. The only thing extra is, that I would have liked to have solder pads for input power along with the current connector. Very Nice... if you could point me to how to fix the batter level indication, I would be appreciated. Also if there is a more detailed user manual than the single sheet. Love the Hat !

I will reccomend this to a few Pi using friends !

Anonymous user #4

2 months ago
Score 0++
If using a high discharge battery, can the device be Modified to output more than 3A? Are there any power sensitive components?

Anonymous user #3

2 months ago
Score 0++
What is the P2 position? I want to mount an external push button power switch on the outside of my case. How would I do that? Thanks

Anonymous user #3

2 months ago
Score 0++
Is there a way to add an external On/Off switch?

Harry

2 months ago
Score 0++
You can check the P2 position.

Swereska

2 months ago
Score 0++
I was going to come here and ask a bunch of questions about why things didn't work... Instead I'll say: nice reverse current protection! My battery was wired backwards...

Xiali

12 days ago
Score 0++

Hi dear,There are many Raspberry Pi fans exchange experiences on our official website, you are welcome to join us: http://geekw...munity/forum Sincerely

Ada/Geekworm

Anonymous user #2

2 months ago
Score 0++
Can I add pins to the back of the module in order to attach another HAT on top of it?

Harry

2 months ago
Score 0++
why not?

Serveurperso

2 months ago
Score 0++
It look the long awaited product for small robots. All other have some hardware bugs and problem, this one pass all intensive testing we make for small Vigibot.com community robots.

Anonymous user #1

5 months ago
Score 0++

Looks primising, will test it!

How to configure (limit) charging current to 1A ?