The Tiniest of LRS RXes

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Firmware

Use the type 5 (DTFUHF 4ch/6ch) firmware image.

BOM

• C1, C10, C13 - 0603 1μF
• C7, C8, C9 - 0603 0.1μF
• R1, R3, R8 - 0603 10kΩ
• R2 - 0603 1kΩ
• R6, R7 - 220Ω
• D2 - 0603 red LED
• D3 - 0603 green LED
• D5 - 0603 Schottky diode
• LP1 - SOT23-5 LP5907 3.3V
• S1 - u.fl connector
• U1 - LFCN-490 (+)
• U2 - RFM22SMD
• U3 - ATMEGA328_QFN
• Y1 - 16MHz resonator

BOM (older 0402 version)

• 3x 0.1μF 0402 cap
• 2x 1μF 0402 cap
• 0603 green LED
• 0603 red LED
• 0603 Schottky diode
• SOT23-5 LP5907 3.3V
• 2x 10kΩ 0402 resistor
• 1x 1kΩ 0402 resistor
• 2x 220Ω 0402 resistor
• u.fl connector
• ATMEGA328_QFN
• RFM22SMD
• 16MHz resonator
• LFCN-490 (+)