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DALRCF405

The DALRCF405 described here: http://www.dalrcmodel.com/DALRC/plus/view.php?aid=184

This board use the STM32F405RGT6 microcontroller and have the following features:

  • 1024K bytes of flash memory,192K bytes RAM,168 MHz CPU/210 DMIPS

  • The 16M byte SPI flash for data logging

  • USB VCP and boot select button on board(for DFU)

  • Stable voltage regulation,9V/2A DCDC BEC for VTX/camera etc.And could select 5v/9v with pad

  • Serial LED interface(LED_STRIP)

  • VBAT/CURR/RSSI sensors input

  • Suppose IRC Tramp/SmartAudio/FPV Camera Control/FPORT/telemetry

  • Supports SBus, Spektrum1024/2048, PPM. No external inverters required (built-in).

  • Supports I2C device extend(baro/compass/OLED etc)

  • Supports GPS

All uarts have pad on board

ValueIdentifierRXTXNotes
1USART1PB7PA9PB7 FOR SBUS IN(inverter build in)
2USART2PA3PA2PAD USE FOR TRAMP/SmartAudio
3USART3PB11PB10USE FOR GPS
4USART4PA1PA0PA0 FOR RSSI/FPORT/TEL etc
5USART5PD2PC12PAD

I2C with GPS port together.Use for BARO or compass etc

ValueIdentifierfunctionpinNotes
1I2C1SDAPB9with GPS outlet
2I2C1SCLPB8with GPS outlet

Buzzer/LED output

ValueIdentifierfunctionpinNotes
1LED0LEDPC14
2BEEPERBEEPC13

VBAT input with 1/10 divider ratio,Current signal input,Analog/digit RSSI input

ValueIdentifierfunctionpinNotes
1ADC1VBATPC2DMA2_Stream0
2ADC1CURRPC1DMA2_Stream0
3ADC1RSSIPA0DMA2_Stream0
4ADC1extendPC0DMA2_Stream0 extend for other senser(PAD)

8 Outputs, 1 PPM input

ValueIdentifierfunctionpinNotes
1TIM12_CH2PPMPB15PPM
2TIM3_CH3OUPUT1PB0DMA1_Stream7
3TIM8_CH1OUPUT2PC6DMA2_Stream2
4TIM1_CH3OUPUT3PA10DMA2_Stream6
5TIM1_CH1OUPUT4PA8DMA2_Stream1
6TIM8_CH3OUPUT5PC8DMA2_Stream4
7TIM3_CH4OUPUT6PB1DMA1_Stream2
8TIM3_CH2OUPUT7PC7DMA1_Stream5 NO PAD
9TIM8_CH4OUPUT8PC9DMA2_Stream7 NO PAD
10TIM4_CH1PWMPB6DMA1_Stream0 LED_STRIP
11TIM2_CH1PWMPA5FPV Camera Control(FCAM)

Gyro & ACC ,suppose ICM20689/MPU6000

ValueIdentifierfunctionpinNotes
1SPI1SCKPB3
2SPI1MISOPA6
3SPI1MOSIPA7
4SPI1CSPC4

OSD MAX7456

ValueIdentifierfunctionpinNotes
1SPI3SCKPC10
2SPI3MISOPC11
3SPI3MOSIPB5
4SPI3CSPA15

16Mbyte flash

ValueIdentifierfunctionpinNotes
1SPI2SCKPB13
2SPI2MISOPB14
3SPI2MOSIPC3
4SPI2CSPB12

SWD

PinFunctionNotes
1SWCLKPAD
2GroundPAD
3SWDIOPAD
43V3PAD

###Designers

  • nyway &DALRC