Using KPPM
The FLY-KPPM shutdown module is a safety module specifically designed for development boards like Raspberry Pi, aimed at preventing data loss due to power outages. Utilizing advanced technology, it automatically switches to capacitor power when a power outage occurs, ensuring the development board can continue to run stably for 15 seconds during the outage, effectively safeguarding data. It is compact, convenient, and easy to install.
Precautions
The input power only supports DC12-24V. Pay attention to distinguishing the positive and negative poles when wiring. Wiring must be performed with the power off. Only power on after confirming the wiring is correct. Our company is not responsible for any losses caused by incorrect wiring.
The +5V at the 5V OUT socket is for emergency power output and should not be used as a regular power supply output. Please use USB-OUT or SIG/IO to power the host computer.
When used with the safety shutdown module, a 12V-24V power supply is required. To ensure the module operates normally, the 5V output voltage inside the safety shutdown module board must not be lower than 4.9V. Otherwise, the safety shutdown module will draw power from the internal boost circuit, causing the capacitor to remain in a charging state and 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: | Total Capacitor Voltage | OI: | Output Load Current |
C1: | C1 Capacitor Voltage | C2: | C2 Capacitor Voltage |
Temp: | Safety Shutdown Module Temperature | E: | Status Prompt, see below |
| Display Content | Status Explanation |
|---|---|
Ready! | Normal Startup |
IN LOW! | Input Voltage Low |
IN OVR! | Input Current Overload |
OV LOE! | Output Voltage Low |
OV OVR | Output Current Overload |
TP OVR! | Temperature Overload |
NONE | Unknown Error |
R: XX Sec | If power is cut off and restored within 10 seconds, this prompt will be displayed. The host computer will restart after the countdown ends. |
Pin Description
-
OUT-RST Reset
-
OUT-PDN Shutdown
-
IN-PIN
Default 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 until 10 seconds have passed and then automatically toggle the 5V output once (ensuring the host computer completes shutdown and can restart). If connected to GND, the automatic power-off time detection function will be disabled.
FLY Host Computer Usage Tutorial
Only applicable to FLY-Pi, FLY-Pi-V2, FLY-C8. FAST system comes pre-installed, no installation required.
For the FLY host computer, use SSH to execute the following commands:
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 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-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 Tutorial
The operation for Raspberry Pi is similar to the above. For Raspberry Pi, insert the SD card containing 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