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hjf

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audio

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36 Questions

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How does this transmitter work/how to tune it?

rf radio 433mhz

Feb 27 '19 at 18:54 hjf 977

0

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0

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57

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Harvesting energy from solar and “USB”

solar-cell solar-energy solar-charge-controller

Apr 18 '18 at 13:02 hjf 977

0

votes

1

answer

151

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Powering a ESP8266 that needs to be mains-referenced?

power-supply mains esp8266

Feb 17 '18 at 15:30 bobflux 38.2k

0

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0

answers

148

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Using HI7190 ADC, value does not match Vref?

arduino microcontroller adc

Jan 4 '18 at 14:53 Dave Tweed 156k

0

votes

1

answer

3k

views

Which design for a “mic booster” circuit?

operational-amplifier audio microphone

Jan 9 '17 at 15:34 Andy aka 323k

-1

votes

1

answer

310

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Grounding considerations for 2018, and DVdd/Avdd connections [closed]

analog adc ground ground-plane

Jan 2 '18 at 14:37 Neil_UK 113k

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