3 weeks down the road 2/3 of eBay stuff from China has arrived. Hong Kong expedited material arrived one week faster.
Combining Adafruit's tutorial with uncle_bob's excellent Fritzing schematics I ventured myself with my first hands on experiment with the DHT22 sensor (pic. below). I skipped the "place a 10K resistor between VCC and the data pin, to act as a medium-strength pull up on the data line" as this does not seem to be needed/ used in WeatherDuino.
uncle_bob, any chance you can kindly put a similar schema for current RX 4.03 board? This is an extremely useful tool to test everything is working fine before any soldering.
After visiting a local shop for parts I now have a couple of doubts/questions:
1 - For test purposes, can we use a polyester 100nf capacitor rated at 250V with a 5% tolerance (instead of the ceramic 50v model). Or does it smell like... burned stuff?
Considering "The voltage rating on a capacitor is the maximum amount of voltage that a capacitor can safely be exposed to and can store" I suppose it can not store more voltage than what it is supplied. Still...
2 - Also for test purposes, since they are more readily available, I suppose there is no problem temporarily using carbon - 5% tolerance - resistors?
Thanks
Combining Adafruit's tutorial with uncle_bob's excellent Fritzing schematics I ventured myself with my first hands on experiment with the DHT22 sensor (pic. below). I skipped the "place a 10K resistor between VCC and the data pin, to act as a medium-strength pull up on the data line" as this does not seem to be needed/ used in WeatherDuino.
uncle_bob, any chance you can kindly put a similar schema for current RX 4.03 board? This is an extremely useful tool to test everything is working fine before any soldering.
After visiting a local shop for parts I now have a couple of doubts/questions:
1 - For test purposes, can we use a polyester 100nf capacitor rated at 250V with a 5% tolerance (instead of the ceramic 50v model). Or does it smell like... burned stuff?
Considering "The voltage rating on a capacitor is the maximum amount of voltage that a capacitor can safely be exposed to and can store" I suppose it can not store more voltage than what it is supplied. Still...
2 - Also for test purposes, since they are more readily available, I suppose there is no problem temporarily using carbon - 5% tolerance - resistors?
Thanks