Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by kokhoor

  1. K

    [SOLVED] Arduino Based 500VAC Voltmeter - 3.3Vin

    Hi all, Thanks for all the input. I settled for a solution like below, constantly measuring to fine tune the R2 resistor required. This may not be a good / accurate solution, but is good enough for me to produce an alert when the value fluctuates out of range. Thanks, everyone! Regards...
  2. K

    [SOLVED] Arduino Based 500VAC Voltmeter - 3.3Vin

    Hi Feldman, Thanks for your reply. Hope you can help to explain more. I was thinking for the 1 Megaohm resistor, the formula I used to obtain it is calculated in the formula below, P is the resistor rating. If it isn't the case, where do I get P? P = (V*V) / R Thanks. Regards...
  3. K

    [SOLVED] Arduino Based 500VAC Voltmeter - 3.3Vin

    Wow, so much input. Thanks and appreciate it everyone! I'll go thru and see which is best option to use. Again, thanks! 1598875182 Hi Klaus, It will be great if you can help to provide a diagram for this to make it clearer. Thanks. Regards, Kok Hoor 1598875253 Hi, I need input...
  4. K

    [SOLVED] Arduino Based 500VAC Voltmeter - 3.3Vin

    Hi, I went thru this article and plan to build it: https://www.engineersgarage.com/contributions/arduino-based-voltmeter/ I will only be building the 500VAC part. However, I am planning on using NodeMCU ESP8266 or ESP32, which is only 3.3V In this case, what should I change to the...
See more

Part and Inventory Search

Back
Top