# Month: November 2020

## Tunnel Diode Testing Notes

ges load to my last message full transcripthighlights tlfong014878Nov 3, 9:14Now suppose there was an earthquake, and the slanting tower somewhere in Europe seems to have slanting “a little bit more”. Now if the […]

## tunnel diode notes

tlfong014878Nov 2, 17:26Before I go, let me comment on your Q&A: Circuit Phenomena Have Dual versions – Cyril Mechkov, Technical University of Sofia, 2013jul07,researchgate.net/post/….You said the following: “Circuit phenomena have dual versions: […]

## Mechanics required for a stepper motor

Mechanics required for a stepper motor Ask QuestionAsked 2 days agoActive 2 days agoViewed 29 times2 I am making an elevator controlled by a raspberry pi zero and driven by a stepper motor. I have […]

## Wonders of Electronics

By Daily Excelsior -22/11/2020 Share Wonders of Electronics By Daily Excelsior -22/11/2020 Share Dr Vishal Sharma “Logic will get you from A to B. Imagination will take you everywhere” – Albert Einstein Electronics is a simple word but […]

How to plot the I-V curve of a tunnel diode? +3−1 I am trying to understand tunnel diodes by experimenting with them. Research tells me they can have negative resistance, and can […]

## How to plot the I-V curve of a tunnel diode?

How to plot the I-V curve of a tunnel diode? +3−1 Question Brief description of the problem How to plot the I-V curve of a tunnel diode? Background I am curious to […]

## Negative resistance from MOSFET circuit

Negative resistance from MOSFET circuit Ask QuestionAsked 9 days agoActive 7 days agoViewed 169 times4 From the paper https://ir.nctu.edu.tw/bitstream/11536/5095/1/A1979JE36000027.pdf I’m trying to understand this MOSFET circuit which creates negative resistance. Whilst the paper explores how it […]

## RFID-RC522 Q&A

Raspberry Pi 4B – RFID-RC522 stopped working Ask QuestionAsked todayActive todayViewed 12 times1 I connected a RFID-RC522 to my RPi 4. It was working perfectly to read data until now. I don’t know why but […]

## How to troubleshoot a DRV8833 motor driver module problem?

How to troubleshoot a DRV8833 motor driver module problem? Ask QuestionAsked 10 days agoActive yesterdayViewed 203 times1 I am trying to control a DC Motor with a DRV8833. To be precise, I have this module from […]

## Heart Reate Sensor AD8232

Raspberry Pi DFRobot Heart rate sensor – code [closed] Ask QuestionAsked yesterdayActive yesterdayViewed 9 times-3Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the […]