Using KPPM
The FLY-KPPM shutdown module is a security module designed for development boards such as Raspberry Pi, aiming to prevent data loss due to power outages. It uses advanced technology to automatically switch to a capacitor power supply when a power outage occurs, ensuring the development board can run stably for 15 seconds during a power failure, protecting data from being lost. It is compact, convenient, and easy to install.
Notes
The input power supply only supports DC12-24V. When wiring, pay attention to distinguish between positive and negative poles. The wiring process must be performed under power-off conditions. Only power on after confirming the wiring is correct; the company will not be responsible for any losses caused by incorrect wiring.
The +5V at the 5V OUT socket is an emergency power output, not for regular power supply. Please use USB-OUT or SIG/IO to power the host computer.
When using the safety shutdown module, it needs to be powered by 12V-24V. To ensure the module works properly, the 5V output voltage inside the safety shutdown module should not be lower than 4.9V. Otherwise, the safety shutdown module will draw power from internal boosting, causing the capacitor to remain in a charging state, leading to continuous heating of the module.
Screen Display Content Explanation
| Screen Content Explanation | Left Explanation | Right Parameter | Right Explanation |
|---|---|---|---|
IN: | Input Voltage | OUT: | Output Voltage |
CA: | Capacitor Total Voltage | OI: | Output Load Current |
C1: | C1 Capacitor Voltage | C2: | C2 Capacitor Voltage |
Temp: | Safety Shutdown Module Temperature | E: | Status Prompt, please see below |
| Display Content | Status Description |
|---|---|
Ready! | Normal Startup |
IN LOW! | Low Input Voltage |
IN OVR! | High Output Current |
OV LOE! | Low Output Voltage |
OV OVR | High Output Current |
TP OVR! | High Temperature |
NONE | Unknown Error |
R: XX Sec | If the power is cut within 10 seconds and then restored, this message will be displayed. After the countdown ends, the host computer will restart |
Pin Description
-
OUT-RST Reset
-
OUT-PDN Shutdown
-
IN-PIN
Default high, when the module is powered on, it will automatically detect the time since the last power loss, if the power loss time is less than 10 seconds, it will wait until 10 seconds have passed and then automatically turn off and on the 5V output once (ensuring the host computer completes shutdown and can restart again) If connected to GND, it will disable the automatic detection of power loss time function
FLY Host Computer Tutorial
Applies only to FLY-Pi FLY-Pi-V2 FLY-C8 FAST system comes with it, no need to install
FLY host computer needs to use SSH to execute the following command
sudo curl -kfSL --progress-bar https://cnb.cool/3dmellow/public/static-files/-/git/raw/main/host/sun50i-h5-power-key.dtbo -o /boot/dtb/allwinner/overlay/sun50i-h5-power-key.dtbo
sudo grep -q "^overlays=.*power-key" /boot/FlyOS-Env.txt || sudo sed -i '/^overlays=/ s/$/ power-key/' /boot/FlyOS-Env.txt
Restart the system
sudo reboot
FLY Host Computer Wiring Tutorial
- FLY Host Computer Wiring Tutorial
- FLY-C8 Using 5V Wiring
- FLY-C8 Using USB Wiring
- FLY-Pi(π) Using 5V Wiring
- FLY-Pi(π) Using USB Wiring
- FLY-Pi-V2 Using 5V Wiring
- FLY-Pi-V2 Using USB Wiring
- FLY-gemini Using USB Wiring
- FLY-lite2.1 Using USB Wiring
- FLY-C8 using 5V wiring, check the wiring according to the diagram
- FLY-C8 using USB wiring
- FLY-Pi using 5V wiring
- FLY-Pi using USB wiring
- FLY-Pi-V2 using 5V wiring
- FLY-Pi-V2 using USB wiring
- FLY-Pi-V2 using USB wiring
- FLY-Pi-V2 using USB wiring
Raspberry Pi Host Computer Tutorial
The operation for Raspberry Pi is similar to the above. The SD card with the system image needs to be inserted into the computer, and add the line dtoverlay=gpio-shutdown,gpio_pin=21 to the config.txt file, then save and exit.
- Raspberry Pi Using 5V Wiring
- Raspberry Pi Using USB Wiring
- Raspberry Pi using 5V wiring
- Raspberry Pi using USB wiring
