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Low-Power FM Transmitter firmware
This ZIP file contains the .hex file and source code for the Low-Power FM Transmitter.
See the article for instructions on programming the chip, including the critical fuses that need to be set for it to run correctly.
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0.96in white OLED with SSD1306 controller
A 4-pin (I²C) OLED screen in white. The display active area is approximately 22 x 11mm while the whole module is about 27 x 19mm.
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0.96in cyan OLED with SSD1306 controller
A 4-pin (I²C) OLED screen in cyan. The display active area is approximately 22 x 11mm while the whole module is about 27 x 19mm.
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Elechouse FM transmitter module
This is the FM transmitter module used in the September 2026 Low-Power FM Transmitter.
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ND0205MA 1.5-4.5V to 5V four-pin boost module
This is the 5V output boost module used in the September 2026 Low-Power FM Transmitter.
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Low-Power FM Transmitter main PCB [CSE260501C]
The main PCB for the Low-Power FM Transmitter.
It's a double-sided PCB with plated through holes, green solder mask and white silkscreen overlay.
76 x 59.5mm.
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Low-Power FM Transmitter lid PCB [CSE260502]
The lid for the Low-Power FM Transmitter.
It's a PCB with drilled holes, black solder mask and white silkscreen printing.
86.5 x 80mm.
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ATmega328PB-AN programmed for the Low-Power FM Transmitter [CSE0501A.HEX]
An 8-bit AVR microcontroller in a 32-pin SMD TQFP package programmed with the firmware for the Low-Power FM Transmitter (CSE0501A.HEX).
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Low-Power FM Transmitter PCB pattern (PDF download) [CSE260501C]
A PDF with the PCB pattern for the Low-Power FM Transmitter.
It's a double-sided design and both layers are in a single PDF.
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