DSHOT (Digital Shot) is a digital communication protocol used primarily in the field of brushless motor control, particularly in drones and other remote-controlled vehicles. It is designed to provide a more efficient and reliable method of communication between the flight controller and the electronic speed controllers (ESCs) compared to traditional analog signals.
1. Digital Signal: Unlike analog signals, DSHOT uses digital signals, which are less susceptible to noise and interference. This results in more accurate and reliable control of the motors.
2. High Speed: DSHOT operates at high speeds, allowing for faster and more precise control of the motors. This is crucial for the stability and responsiveness of drones.
3. Bidirectional Communication: DSHOT supports bidirectional communication, enabling the flight controller to receive telemetry data from the ESCs. This can include information such as motor RPM, temperature, and voltage.
4. Error Detection: The protocol includes error detection mechanisms, which help in identifying and correcting errors in the communication, thereby enhancing the reliability of the system.
Compatibility: DSHOT is widely supported by modern flight controllers and ESCs, making it a popular choice in the drone community.
- DSHOT150: Operates at 150 kHz.
- DSHOT300: Operates at 300 kHz.
- DSHOT600: Operates at 600 kHz.
- DSHOT1200: Operates at 1200 kHz.
- Drones: For precise control of brushless motors, enhancing flight performance and stability.
- Remote-Controlled Vehicles: Including cars, boats, and other RC models that require accurate motor control.
In summary, DSHOT is a digital communication protocol that enhances the performance, reliability, and capabilities of brushless motor control systems, particularly in drones and other RC applications.
This guide provides step-by-step instructions to configure the DSHOT analyzer using Logic 2 by Saleae.
Ensure you have the latest version of Logic 2 installed and your DSHOT analyzer properly added.
- Open the Device Settings pane.
- Select one or more Digital channels where the DSHOT signal will be captured.
- Navigate to the Analyzers tab.
- Click Add Analyzer and select Async Serial.
- Set the Input Channel to the digital channel(s) chosen in Step 1.
- In the Async Serial configuration, set the Bit Rate (Bits/s) to three times (x3) the DSHOT frequency.
- For example, for DSHOT600, set the bit rate to
1800000.
- For example, for DSHOT600, set the bit rate to
- Set Bits per Frame to
48. - Enable Inverted under Signal Inversion.
- Click Add Analyzer again and select your DSHOT analyzer.
- In the configuration window:
- Choose the Async Serial analyzer (configured in Step 2) as the Input Analyzer.
- Click Save to apply the settings.
Your DSHOT analyzer is now configured and ready to interpret DSHOT signals within Logic 2.