Puck.js, Raspberry pi camera

[espruino-discuss]

Posted at 2020-04-09 by user111161

Hello, I was hoping to use a Puck.js to trigger a camera connected to Raspberry pi zero with WiFi/Bluetooth.
I've been looking at the tutorials and not knowing were to start. I'm guessing this should be possible, I'm just not sure were to start.
Thanks

[espruino-discuss]

Posted at 2020-04-09 by Robin

Thr 2020.04.09

'I've been looking at the tutorials'
'I'm just not sure were to start'

Hi @user111161, is the inquiry more on how to use/code Javascript, or how to interface with another device?

link you found

http://www.espruino.com/Tutorials

suggested order

http://www.espruino.com/Quick+Start+BLE
http://www.espruino.com/Web+Bluetooth
http://www.espruino.com/Home+Automation
Home Automation with Raspberry Pi, MQTT, and Espruino
http://www.espruino.com/Pixl.js+BLE+Ethernet+Bridge
Pixl.js Bluetooth to Ethernet MQTT Bridge

other Puck examples

http://www.espruino.com/BLE+Lightbulbs
http://www.espruino.com/BLE+Music+Control
http://www.espruino.com/DroidScript+Puck.js

[espruino-discuss]

Posted at 2020-04-09 by user111161

Thank you, I'll review the suggested link. I'm looking at how to interface the Puck.js with a Raspberry pi Zero using Bluetooth

[gfwilliams]

Posted at 2020-04-09 by @gfwilliams

I think you've basically got two options:

• Use Puck.js as a device like a keyboard, and use it to send a keypress that your code then acts on: http://www.espruino.com/BLE+Keyboard
• Have an app on the Pi that scans Bluetooth and then acts on the data received. There are a few ways to do that, but maybe the easiest is this one: https://www.espruino.com/BLE+Advertising

Hope that's some help!

[espruino-discuss]

Posted at 2020-04-10 by user111161

Thank you, this helps
working through the following example
https://www.espruino.com/BLE+Music+Control

setWatch(function(e){
 print(e.time - e.lasTime);
}, BTN, { edge:"falling",repeat:true,debounce:50});

the puck returns "NaN" on press button, the puck is on 2v04

[espruino-discuss]

Posted at 2020-04-10 by user111161

I figured out my mistake now works
Thanks