A1 Series Bambu Lab App-Controlled Supplementary Lighting Control Box
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Description
Previously, I saw solutions using a photoresistor module for control, but I found that it obscured the camera, looked unsightly, and was prone to interference during slicing. Therefore, I devised a solution that requires no additional printed parts.
This solution allows for app-based control of external supplementary lighting without altering the appearance of the A1 series, including the A1 mini.
It only requires soldering a signal wire to the camera module and routing it from the Z-axis cabling.
The signal wire connects to the signal port of a low-level controlled relay switch module.
All power is drawn from the AMS port.
This solution requires some electronics knowledge and a high level of manual dexterity.
The circuit diagram is as follows:
It is speculated that the LED in the camera module also uses the on/off control of the negative electrode to control the light. Therefore, simply routing a wire from the negative electrode of the LED in the camera module can obtain a low-level signal. Connecting this to the signal wire of a 24V low-level control module can control the relay's opening and closing, thereby controlling the external supplementary lighting switch. This method has been used for nearly half a month without any problems. If there are any potential hazards, welcome all experts to point them out.
A1 series camera lead.
Additionally, I used an exhaust fan for the enclosure, controlling the fan speed by detecting the top temperature of the enclosure. The specific wiring is shown in the figure.
The required modules and accessories are as follows:
Type-C 4-Pin Female Connector, Epoxy-Sealed, Straight, Black and White, with PH2.0 Terminals, Solderable, Oval, with Wire, Charging Port
1-Channel 24V Relay Module Driver with Optocoupler Isolation, Supports PNP/NPN High/Low Level Triggering
Small 12V Four-Wire PWM Fan Temperature Control Speed Regulator, Temperature and Speed Display, Supports 3A Fan Shutdown
XL4005 DC-DC Adjustable Step-Down Module, 4~38V High Power, 96% High Efficiency, Low Ripple 5A
M2*6*4 CA Cross-Shaped Ultra-Thin Flat-Head Self-Tapping Screws
One 12V 4-Wire Adjustable Speed Fan
One 12V LED Strip
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