Grip Connect

Force-Sensing Climbing Training

The objective of this project is to create a Web Bluetooth API client that can establish connections with various Force-Sensing Hangboards / Plates used by climbers for strength measurement. Examples of such hangboards include the Griptonite Motherboard, Climbro, mySmartBoard, Entralpi, Tindeq Progressor or MAT Muscle Meter

Learn more: Docs - Browser Support

Try it out

Chart - Flappy Bird - Pong

Install

This project can be found in the NPM package registry.

$ npm install @hangtime/grip-connect

Example usage (with a Motherboard)

Simply importing the utilities you need from @hangtime/grip-connect.

<button id="motherboard" type="button">Connect Motherboard</button>

import { Motherboard, battery, connect, disconnect, info, notify, stream } from "@hangtime/grip-connect"

const motherboardButton = document.querySelector("#motherboard")

motherboardButton.addEventListener("click", () => {
  connect(Motherboard, async () => {
    // Listen for stream notifications
    notify((data) => {
      // { massTotal: "0", massMax: "0", massAverage: "0", massLeft: "0", massCenter: "0", massRight: "0" }
      console.log(data)
    })

    // Read battery + device info
    await battery(Motherboard)
    await info(Motherboard)

    // Start weight streaming (for a minute) remove parameter for a continues stream
    await stream(Motherboard, 60000)

    // Manualy tare the device when the stream is running
    // await tare(5000)

    // Manually call stop method if stream is continues
    // await stop(Motherboard)

    // Download data to CSV: format => timestamp, frame, battery, samples, masses
    // download()

    // Disconnect from device after we are done
    disconnect(Motherboard)
  })
})

Roadmap

Help wanted: Do you own any of these devices? Use Google Chrome's Bluetooth Internals chrome://bluetooth-internals/#devices and press Start Scan to look for your device, click on Inspect and share all available services with us.

Device support

• ✅ Griptonite Motherboard
• ✅ Tindeq Progressor
• ☑️ Entralpi (not verified)
• ➡️ Climbro
• ➡️ mySmartBoard
• ➡️ MAT Muscle Meter

Features

• ✅ Connect / Disconnect
• ✅ Start / Stop data stream
• ✅ Battery status
• ✅ Read calibration
• ✅ Device info: firmware / serial etc.
• ✅ Check if device is connected
• ✅ Peak / Average load
• ✅️ Tare / unladen weight
• ✅️ Download data to CVS
• ➡️ Endurance
• ➡️ Rate of Force Development: RFD
• ➡️ Critical Force

Development

git clone https://github.com/Stevie-Ray/hangtime-grip-connect
cd hangtime-grip-connect
npm install

Credits

A special thank you to:

• @CassimLadha for sharing insights on reading the Motherboards data.
• @donaldharvey for a valuable example on connecting to the Motherboard.
• @ecstrema for providing examples on how to play games with the Entralpi.
• Tindeq for providing an open Progressor API
• @StuartLittlefair for his PyTindeq implementation.

Disclaimer

THIS SOFTWARE IS NOT OFFICIALLY SUPPORTED, SUPPLIED OR MAINTAINED BY THE DEVICE MANUFACTURER. BY USING THE SOFTWARE YOU ARE ACKNOWLEDGING THIS AND UNDERSTAND THAT USING THIS SOFTWARE WILL INVALIDATE THE MANUFACTURERS WARRANTY.

License

BSD 2-Clause © Stevie-Ray Hartog