The microcontrollers to avoid and what to consider instead:
I watched this fun video about how to use a ten cent microcontroller:
I have my ATtiny85 microcontroller installed in a HW-260 development board (purchased from AliExpress). I program the ATtiny85 with the SparkFun Tiny AVR Programmer, the setup guide is here: Tiny AVR Programmer Hookup Guide.
On the SparkFun programmer the onboard LED is PB0. On the HW-260 the onboard LED is PB1. This is the code I used to flash the HW-260 LED:
#define LED_BUILTIN PB1
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
You can see the programmer settings I used in Arduino IDE in this screenshot:
Here’s an interesting video about integrating a display with your microcontroller: The BASICS of Adding a Display to Your Arduino, ESP32, STM32, or other MCU Project. The graphics library he recommends is LVGL.
This post is part of my video blog and you can find more information about this video over here.
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In this video we play around with the 2.13″ and 2.9″ WeAct Studio Epaper Modules available here: WeAct 2.9” 2.13″ 2.9 2.13 Inch Epaper Module E-paper E-Ink EInk Display Screen SPI Black-White Black-White-Red.
As I mention in the video I was having a hard time getting good solder joints from my Horusdy Soldering Station. This was annoying me so much that I went and purchased a new soldering iron! My new iron is an Metcal PS-900 Soldering Station and I love it! This is what a soldering iron should be!
We use the Arduino IDE and the sample code from WeAct Studio but we don’t successfully load content into our Epaper Module.
We use the Rigol MSO5074 Mixed Signal Oscilloscope to and the Rigol PLA2216 Logic Probe to wire up a Logic Analyzer to instrument out circuit, but we don’t follow through with that in the end. We run out of time. We will try again another day.
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Yum Cha 58-pcs Stainless Steel Thread Pitch Gauge notes |
Let’s go shopping!
Some photos I took this morning of some of my microcontrollers and associated devices.
Today I discovered the Make: Boards Guide. It’s great. It has a comparison feature too, so you can compare board options side-by-side.
So I discovered this guy Ben Eater after watching his video How do hardware timers work?. It looks like he has some cool stuff.