Ardurino Logger


Posted on Feb 4, 2014

The switches and LEDs are here because they are mounted on the same front panel as the display. The `D` connetor, however, is at the rear. The two switches are momentary downwards, but latch upwards. I like to buy assortments cheaply, in this case single in-line resistor packs and DIP switches. This design makes a virtue of the common connection a


Ardurino Logger
Click here to download the full size of the above Circuit.

nd close matching of the resistor packs. It provides 8 ranges in 3V increments. Spare switch positions are used to optionally monitor the power supply voltages. The Adafruit logger shield has spare pads for extras and two uncommited LEDs. I wired in a pulse stretch circuit to detect responses from the SD, which would otherwise be too short to see. I used discretes to save space. I included code to turn on the DS1307 square wave, but have not used it.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Radio Glen Transmit Selector system
    AC time delay circuit with 555
    Amatorki projekt
    measurement Measuring large differential voltage
    how to make digital voltmeter
    RIAA Phono Preamplifier
    early GEC transistor radio
    Transistor circuit of a pressure gauge



    Top