Using KPPM
FLY-KPPM is a safe shutdown module designed specifically for development boards such as Raspberry Pi, aimed at preventing data loss caused by power outages. Using advanced technology, it can automatically switch to capacitor power when a power outage occurs, ensuring that the development board can still operate stably for 15 seconds during a power outage and ensuring effective data preservation. Compact and convenient, easy to install.
Precautions
Input power only supports DC12-24V. Pay attention to the positive and negative poles during wiring. The wiring process must be carried out with the power off. Confirm the wiring is correct before powering on. Our company is not responsible for losses caused by incorrect wiring.
The +5V at the 5V OUT socket is for emergency power output only and should not be used as a regular power supply. Please use USB-OUT or SIG/IO to power the host computer.
When using the safe shutdown module, a 12V-24V power supply is required. To ensure normal module operation, the 5V output voltage of the safe shutdown module must not drop below 4.9V; otherwise, the safe shutdown module will draw power from internal boost, keeping the capacitors in a constant charging state, leading to continuous heating.
Screen Display Content Description
| Screen Content Description | Left Description | Right Parameter | Right Description |
|---|---|---|---|
IN: | Input Voltage | OUT: | Output Voltage |
CA: | Total Capacitor Voltage | OI: | Output Load Current |
C1: | C1 Capacitor Voltage | C2: | C2 Capacitor Voltage |
Temp: | Safe Shutdown Module Temperature | E: | Status Prompt, see below |
| Display Content | Status Description |
|---|---|
Ready! | Normal Startup |
IN LOW! | Input Voltage Low |
IN OVR! | Input Voltage Too High |
OV LOE! | Output Voltage Too Low |
OV OVR | Output Voltage Too High |
TP OVR! | Temperature Too High |
NONE | Unknown Error |
R: XX Sec | If power is cut and restored within 10 seconds, this prompt will be displayed. After the countdown ends, the host computer will restart |
Pin Description
-
OUT-RST Reset
-
OUT-PDN Shutdown
-
IN-PIN
Default is pulled high. When the module powers on, it automatically detects the last power-off time. If the power-off time is less than 10 seconds, it will wait for 10 seconds before automatically switching the 5V output once (to ensure the host computer shuts down completely and can restart). If connected to GND, the automatic detection of the power-off time function will be disabled.
FLY Host Computer Usage Guide
Only applicable to FLY-Pi FLY-Pi-V2 FLY-C8 FAST system comes pre-installed, no additional installation required
FLY host requires executing the following commands via SSH
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
Reboot the system
sudo reboot
FLY Host Computer Wiring Guide
- FLY Host Computer Wiring Guide
- 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-lite2.1 Using USB Wiring
- FLY-C8 V1.2 Wiring
- 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-Lite2 Using USB Wiring
Raspberry Pi Host Computer Usage Guide
The operation for Raspberry Pi is similar. For Raspberry Pi, insert the SD card with the system image into a computer, 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