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Markel

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    Markel
    Markel reacted to NicholasLindan in Powering ST LSM303AGR from MCU IO Pin   
    I've done this on products - powered an analog section off an I/O pin.  It is the cheapest power control method - heck it's free and it takes no power to implement.
    If you need more current you can parallel two or more pins.  There is no problem with parallel MOSFETs, they will current share as rdson increases with temperature.
  2. Like
    Markel
    Markel reacted to Rei Vilo in Powering ST LSM303AGR from MCU IO Pin   
    You need to read the data-sheets of the MCU and the sensor and check the mA provided and used.
  3. Like
    bluehash
    Markel got a reaction from bluehash in MSP430FR5969 LP + Sparkfun HX711 0.0 lbs output ?   
    Hi,
     
       Just an update. I tested this at a weighing scale setup. My load weigh is 1 litre of water = 2.2 lbs. I run the SparkFun_HX711_Calibration.ino and got the calibration factor. I set the calibration factor at SparkFun_HX711_Example.ino. I got the correct weight displayed which is 2.2 lbs.
     
    Best Regards,
    Markel Robregado
  4. Like
    Fmilburn
    Markel got a reaction from Fmilburn in MSP430FR5969 LP + Sparkfun HX711 0.0 lbs output ?   
    Hi,
     
       Just an update. I tested this at a weighing scale setup. My load weigh is 1 litre of water = 2.2 lbs. I run the SparkFun_HX711_Calibration.ino and got the calibration factor. I set the calibration factor at SparkFun_HX711_Example.ino. I got the correct weight displayed which is 2.2 lbs.
     
    Best Regards,
    Markel Robregado
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