Kakute H7 V2 and Receiver Blue MX SR3100 (DSM2)

Hi there!

Sorry if in the wrong place - cant quite find a right category for this.

So I’m trying to connect a receiver Blue MX SR3100 to the Kakute H7 V2.
(Yes a lousy receiver, but its the only I got my hands on right now for the first build)

SR3100 is a 3 channel 2.4ghz DSM2 receiver.
With it im using a ORX DSM2 T-SIX transmitter.

I cannot find topics or advice on how to connect the receiver.

Any help on this?


Thanks already, got this solved with ChagGPT 3.5

So it goes like this:

To connect the Spektrum SR3100 receiver to the Kakute H7 V2 flight controller, you’ll typically use a UART (Universal Asynchronous Receiver-Transmitter) port on the flight controller for communication between the two devices. Here’s how you can do it:

  1. Identify UART Ports on Kakute H7 V2:
  • The Kakute H7 V2 flight controller typically has several UART ports labeled UART1, UART2, UART3, etc.
  • Refer to the flight controller’s manual or documentation to identify the UART ports and their corresponding pinouts.
  1. Select a UART Port:
  • Choose a UART port on the Kakute H7 V2 flight controller to connect to the SR3100 receiver. UART ports are commonly used for communication with peripherals such as receivers, GPS modules, and telemetry systems.
  • UART1 is often used for receiver communication, but you can use any available UART port based on your specific configuration and preferences.
  1. Wire Connection:
  • Connect the signal wire (usually an orange or white wire) from the SR3100 receiver to the chosen UART port on the Kakute H7 V2 flight controller.
  • The signal wire carries the PPM (Pulse Position Modulation) or S.Bus signal from the receiver to the flight controller.
  1. Power and Ground Connection:
  • Connect the positive (+) and negative (-) wires from the SR3100 receiver to an appropriate power source on your drone.
  • You can typically use any available 5V power source on your drone (in this case 3.3V), such as a BEC (Battery Eliminator Circuit) output from an ESC or voltage regulator.
  • Ensure that the ground (GND) wire from the receiver is connected to a common ground point with the flight controller and other electronic components.
  1. Configuration:
  • Once the physical connections are made, you’ll need to configure the Kakute H7 V2 flight controller to recognize and communicate with the SR3100 receiver.
  • Use the configuration software or firmware interface for the Kakute H7 V2 to set up the receiver protocol (e.g., PPM, SBUS) and bind the receiver to your transmitter.
  1. Verify Connection:
  • After configuration, verify that the Kakute H7 V2 flight controller is receiving signals from the SR3100 receiver by checking the receiver inputs in your flight control software.

By following these steps, you can effectively connect the Spektrum SR3100 receiver to the Kakute H7 V2 flight controller for communication in your drone system. Ensure all connections are secure and double-check the configuration settings to ensure proper operation.

And for the last advice the ChatGPT told me to use UART RX pins for the job.

If this is totally wrong - please tell me :smiley: Will do connections maybe today.

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