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Matek - CRSF to PWM Converter (C Type)
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Matek - CRSF to PWM Converter (C Type)

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$19.80
SKU:
MS-CSRF-C
Shipping:
Calculated at Checkout

CRSF-PWM Converter, CRSF-PWM-C

  • Compatible with CRSF protocol receiver only
  • Support any CRSF protocol receivers (including 433MHz, 868MHz, 915MHz, 2.4GHz)
  • 10x PWM outputs
  • PWM frequency configurable (50Hz default, 100,160,330, 400Hz)
  • 2x UARTs (for Receiver and GPS)
  • Telemetry ID: RxBt, Curr, Capa, Bat%, GPS, GSpd, Hdg, Alt, Sats
  • 36V Max. battery voltage sense (1K:10K voltage divider built-in)
  • Current sensor built-in (90A continuous /220A Peak),  current scale = 150 by default
  • Vbat and Current sensor scale configurable
  • Failsafe value auto set
  • Firmware upgradeable
  • Rated voltage: 4~9V @5V pad, 0~36V @BAT+
  • No 5V regulator built-in, Servos must be powered via 5V pad by external 5V source.
  • 26mm x 26mm, 2.8g
  • Packing: 1x CRSF-PWM-C,  1x low ESR capacitor,  Dupont 2.54 pins

Pinouts and Pads

  • Tx1/Rx1(UART1) for CRSF protocol Receiver
  • Tx2/Rx2(UART2) for GPS/firmware update/setting parameters
  • 1~10: CH1~CH10 PWM outputs
  • Curr: current sensor signal (0~3.3V)
  • Vbat(CRSF-PWM-6 and -C ): (0~36V) Battery voltage sensing
  • Vbat(CRSF-PWM-B) ): (6~30V) Battery voltage sensing and power supply of onboard BEC
  • G: ground
  • 4v5 pad voltage = 5V pad voltage -0.3V,  make sure the voltage on 5V pad is not higher than receiver and GPS rated voltage.

Failsafe (FW 1.1.1 or older)

  • Failsafe value is set automatically after CRSF-PWM board is powered on and receive CRSF signal. LED blinks 8 times quickly.
  • Failsafe value = The PWM value of each channel(except CH3) when CRSF signal is received by CRSF-PWM board for the first time
  • CH3 is specially arranged for the throttle,  Failsafe value = 988 by default.
  • Usually put the Throttle  joystick to the lowest point,  put AIL(Roll), ELE(Pitch), RUD(Yaw) middle before powering on receiver.

Failsafe (FW 2.0.0 or newer)

  • CH3 is arranged for the throttle,  Failsafe value = 988 by default.  you can change the failsafe value of CH3 and other channels by following settings.
  • Make sure ESC signal is disconnected from CRSF-PWM board before starting failsafe settings
  • Bridge PWM1 and PWM2 signal pad, then power on CRSF-PWM board and receiver.
  • Failsafe value will be saved automatically after CRSF-PWM board is powered on and receive CRSF signal. LED blinks 8 times quickly.
  • Failsafe value = The PWM value of each transmitter channel when CRSF signal is received by CRSF-PWM board.
  • Remove the jumper between PWM 1 and 2,  then CRSF-PWM board will work in normal PWM output mode.

LED status

  • Slow blinks: CRSF-PWM board doesn’t receive CRSF signal, e.g., receiver is not bound with transmitter, receiver is not connected to UART1 of CRSF-PWM board.
  • 8x quick blinks: CRSF-PWM board received CRSF signal and failsafe value is saved. (firmware 1.1.1 or older)
  • Solid ON:  CRSF-PWM board and receiver are working normally
  • 2x slow blinks between 8x fast blink and solid on: CLI mode is active  (firmware 1.1.1 or older)

GPS telemetry

  • Compatible with GPS NMEA protocol, 1Hz, Baud 9600~115200
  • GPS “TX” to CRSF-PWM board “RX” Single wire half duplex UART connection,   CRSF-PWM board “TX” to GPS “RX” is not essential.
  • Support GPS Telemetry ID: GPS, GSpd, Hdg, Alt, Sats
  • u-blox series GPS can output “0+1 – UBX+NMEA” protocol by default
  • Sensors(GPS, GSpd, Hdg, Alt, Sats) will blink in Transmitter TELEMETRY tab once CRSF-PWM board has connection with GPS.
  • Troubleshooting for no GPS telemetry,  double check the wiring between GPS and CRSF-PWM board,  some u-blox GPS may don’t output NMEA protcol, you need to revert GPS to default configuration in u-center.
  • with OpenTX Telemetry Logging, You can plot your flight path or search the lost plane.

VSpd telemetry (Vario)

  • VSpd telemetry is supported by ExpressLRS 2.0, EDGE 2.6, OPENTX 2.2 or newer.
  • Support barometer MS5611(I2C address 0x77) and SPL06-001 (I2C address 0x76)

TIM & PWM Frequency

  • PWM frequency on all 10x Channels can be configured according to TIM
  • PWM run at 50Hz by default
  • TIM2:  CH1, CH2, CH4
  • TIM16: CH3
  • TIM3:  CH5, CH6, CH7, CH8
  • TIM1:  CH9, CH10

CLI mode

  • If CRSF-PWM board doesn’t detect GPS connected to UART2 within 10 seconds after powering on,  CLI mode will active.
  • After CLI mode is active, CRSF-PWM board can be connected to configurator via USB-TTL module/FC passthrough.
  • In CLI mode, CRSF-PWM board firmware can be updated
  • CLI mode has no effect to receiver CRSF signal and PWM outputs

Additional Information

CLI Mode and Parameters

Firmware updates

SKU CRSF-PWM-6 CRSF-PWM-C CRSF-PWM-B CRSF-PWM-V10 CRSF-PWM-V
ELRS-R24-V
RF Frequency compatible with any CRSF protocol receivers
(including 433MHz, 868MHz, 915MHz, 2.4GHz)
PWM outputs 6 10 8 10 7
CH remapping set output_5 = ch11 or ch12
PWM frequency 50, 100, 160, 330, 400Hz
Telemetry ID  RSSI, Qly SNR,  RxBt, Curr, Capa, Bat%, GPS, GSpd, Hdg, Alt, Sats, VSpd, Baro Alt
Vbat pad 0~36V 0~36V 6~30V 0~36V 0~36V
Current sensor external 90A/220A external external external
BEC external external 5V/6V  5A external external
Barometer external external external SPL06-001 SPL06-001
PCB Size(mm) 25*16 26*26 33*21 27*16 38*16

Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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Questions & Phone Orders

3/103 Cryers Road
(Best Entrance from Transport Place)
East Tamaki, 2013, Auckland
Call us: 09-265-1041

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