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Silly Job Title: Bit Distinguisher.
In this video we build an LED heart. It is beautiful and green.
The schematic and instructions are these:
As we discover in the video this circuit is an astable multivibrator made with two op-amps provided by an LM358.
I mention that my copy of Learning the Art of Electronics: A Hands-On Lab Course 2nd Edition has arrived. Very happy about that! I will be getting on with the notes for these very soon.
I mention about the two Logitech BRIOs that I have installed as my “maths cam”. This will enable me to record my maths videos, which I am planning to start soon. I will be working through my old high school mathematics textbooks starting with Signpost 7.
I mentioned my Spivak calculus book, and my Stewart calculus book too, but I can’t seem to find my copy of that at Amazon. If you’re interested in such things check out Calculus by Spivak from Learning as a hobby.
We use the METCAL PS-900 Soldering Station for soldering.
We use the Peak Electronic Design Atlas DCA75 Pro Semiconductor Analyzer to check our NPN transistor.
We use the Peak Electronic Design Atlas LCR45 LCR Meter to check our resistors and capacitor.
We use the Riden RD6006 Bench Power Supply to provide 5V for testing.
We use the Yizhan Digital Microscope to have a closer look at a few things.
We use the Hakko CHP 3C-SA Precision Tweezers for working with small parts.
I mention about these bins which I have purchased recently. They are cheap and a good size but my experience is that the material is very brittle and prone to breaking.
And love to Nirvana for Heart-Shaped Box. 💕
Also, here’s the full list of my ESP32 boards:
- WeAct ESP32 ESP-32 ESP32C3 ESP32-C3FH4 Development Board Wireless WiFi Bluetooth-compatible Module Micropython
- ESP32-CAM-MB WiFi Module Serial to WiFi ESP32 CAM Development Board 5V Bluetooth with OV2640 Camera DIY
- ESP32-C3 MINI Development Board ESP32 SuperMini Development Board ESP32-C3 Development Board WiFi Bluetooth Expansion Board
- ESP32-C3 SuperMini WiFi Bluetooth-Compatible Board ESP32 C3 SuperMini Development Board IOT Board for Arduino
- ESP32-C3 OLED development board with 0.42 inch OLED module ceramic antenna ESP32 supermini development board wifi Bluetooth
- ESP32 Development Board TYPE-C/MICRO USB CP2102 WiFi+Bluetooth Dual Core ESP32-DevKitC-32 ESP-WROOM-32 Expansion Board 38PINS
- ESP-12E WeMos D1 UNO R3 CH340 CH340G WiFi Development Board Based ESP8266 Shield Smart Electronic PCB For Arduino Compatible IDE
- ESP32 Development Board TYPE-C/MICRO USB CP2102 WiFi+Bluetooth Dual Core ESP32-DevKitC-32 ESP-WROOM-32 Expansion Board 38PINS
- WeAct ESP32-C6 Development Board ESP32C6 Minimum System Board ESP32 Core Board RISC-V Espressif IoT WiFi6 Bluetooth Zigbee
Thanks very much for watching! And please remember to hit like and subscribe! :)
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Wozniak Solder Lugs![]() |
Let’s go shopping!