Few years back I had posted an article on burning ROM on ESP-01. The method worked good on my older boards but not working on the newer chips. I needed to spend quite some hours to figure out the problem. And then it turned out that it is the SPI mode that is the matter.… Continue reading ESP-01 and ESP-01S Burning AT ROM- New and Updated
Category: ESP 8266
Arduino and memory pointers
I needed to use pointers in my Arduino code. The pointer was for a string. So it was a pointer to an array or pointer to a pointer. I had last worked with pointers many decades back, so it needed a bit of remembering and experimenting to get it right. The problem was a little… Continue reading Arduino and memory pointers
Websites for buying electronics parts in India
Amazon.in – exorbitant prices. Often 3 or 4 times. There are sellers who will send wrong products. Amazon will initiate a replacement which has little chance of happening if the price of item is low. Calcuttaelectronics.com — very reliable, parts quality good. But since 2020 (after the first lockdown) their variety and stock has gone… Continue reading Websites for buying electronics parts in India
Free Online Tools or Software for Electronic Circuit Simulation
https://www.circuitlab.com/ Though free but only a few tries for each session. Not much useful. https://www.multisim.com/ This is good. So far I have used for simulating small sections like filters, transistor amplifiers etc. The free version served the purpose. https://www.falstad.com/mathphysics.html Various Simulation tools are there. Yet to explore much. Please note – The information provided here… Continue reading Free Online Tools or Software for Electronic Circuit Simulation