Avatar for Jolm

Jolm

Member since Nov 2014 • Last active Dec 2018
  • 3 conversations
  • 6 comments

Most recent activity

  • in Puck.js, Pixl.js and MDBT42
    Avatar for Jolm

    sounds great!

    Thanks!

  • in Puck.js, Pixl.js and MDBT42
    Avatar for Jolm

    I like to measure lateral acceleration in a carrera digital slot car and send it via BLE to a rasperry Pi. So I need tiny and lightweight electronics.

    (how) can I wire a MPU6050 accelerometer to a MDBT42Q Board? I do not have a I2C1 Pin like the pico has. Is that an issue?

    • 8 comments
    • 1,036 views
  • in Interfacing
    Avatar for Jolm

    Thank's for your feedback.
    I'll go with a RFM12B-868-S2 for trial and let you know how it works.

    Cheers,

    Flo

  • in Interfacing
    Avatar for Jolm

    Can someone recommend a 868 MHz transceiver module that works well with the espruino?

    Thanks,

    Flo

    • 3 comments
    • 613 views
  • in General
    Avatar for Jolm

    Hi Gordon,

    That sounds like a good plan. I'll go the analog circiut way first.

    Btw. I can't wait to get my picos! You are doing an awsome job!

    Cheers,
    jolm

  • in General
    Avatar for Jolm

    Hi,

    I like to build a device that recognizes certain audio frequencies. The usecase is as follows: 
    My daughter is diabetic and weares an Insulin pump. If the blood sugar is out of range the pump plays an alarm beep. At fast decreasing sugar values it plays a three tone melody. 
    I tried to use a standard Baby Monitor to transfer alarms to my bed room but baby monitors do not hear that frequencies at all. So I need to solder something.

    My basic question is: can I connect a microphone to the analog Input and separate the beep frequency from all the other noise by software in the espruino or shoud I connect an external ADC? At a later stage I like to recognize three tone melodies to separate different alarms. 

    Does this work at all?

    Thanks,

    Jolm

Actions