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You are mentioning at https://github.com/dwhinham/mt32-pi/wiki/LCD-and-OLED-displays to use a 1uF cap for a 2.42" display, with a reference to the Arduino forum where they're talking about this display...but they are using a 10uF cap. What is correct/better? Just wanted to ask or clarify... |
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The resistor and capacitor on the reset line form an RC delay. This keeps the display held in reset for a short period on power-up for the supply to stabilize. The values aren't critical. With a 10kΩ resistor, a 1µF capacitor will keep it in reset about 10mS, and a 10µF will keep it in reset about 100mS. Either should be fine. |
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Thanks for clarifing this for a novice! |
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The resistor and capacitor on the reset line form an RC delay. This keeps the display held in reset for a short period on power-up for the supply to stabilize. The values aren't critical. With a 10kΩ resistor, a 1µF capacitor will keep it in reset about 10mS, and a 10µF will keep it in reset about 100mS. Either should be fine.