HaiFeng's Blog

  --------------------------------------------------------------------------- Please ensure you have installed ESP32 properly in Arduino IDE software before proceeding. Click this link if you want to install Arduino IDE :  https://www.arduino.cc/en/software --------------------------------------------------------------------------- Introduction to ESP32 ESP32 is a series of microcontroller chips like Arduino. It is the advance version of ESP8266 and is loaded with lots of new features.  Below are the specifications of ESP32 :  - ESP32 is dual core. (It has 2 processors.) - It has built-in Wi-Fi and bluetooth. - It runs 32 bits programs. - The clock frequency can go up to 240M Hz.  - It has a 512 kB RAM. - This particular board has 30pins. (There is also a new version which has 36pins.) Datasheet of ESP32 DEVKIT V1 - DOIT (Board that I will use in my lab) --------------------------------------------------------------------------- Part 1 - Use Push Button to Cont...

--------------------------------------------------------------------------- Please ensure you have installed Multisim software before proceeding.  Click the link here if you want to install the software :   https://www.ni.com/en-my/support/downloads/software-products/download.multisim.html#312060 --------------------------------------------------------------------------- Objectives 1. To find the internal resistance and the currect sensitivity of the galvanometer.  Exercise 1. Set the potentiometer to 510 Ω. Connect the circuit as in the Figure 1.1 and keep the voltage source in minimum position such that voltage output from the voltage terminals  are 0V. 2. Increase the voltage supply and the galvanometer pointer will deflect towards right hand side or left hand side. You can replace the galvanometer with the DMM/Ammeter  in the Multisim. Assume R g is 1.2 Ω for the given galvanometer. Vary the voltage supply until the galvanom...