/347 error on copying my arduino code
It is caused because ” in WordPress is unicode not Arduino code. You will need to replace every ” with new ones. I will see who I can get this resolved.
Christmas came early. https://inventr.io/ send me a box of new components to come up with interesting projects for them. Two more UNOs. I just did a DC motor with a NPN transistor. I will do the same with a PNP transistor and show how the PWM works differently on them. I am going to connect back up the LCD displays on pins 10,11, and 13.
I need to expand my design to 3 levels. I have two new power adapters coming for the UNOs. I need room to move components around.
I have so much stuff for the Arduino project. I went out and purchased storage boxes, glue gun, soldering iron and label maker.
I have SIPO and PISO shift registers that I have been using on projects. All the wires that came with the kits. I am going through all the components shipped to me and putting them in drawers when I identify them. I will probably get a second clear drawer cabinet soon.
I found this kit on Facebook advertised for $29. The Advanced Hero’s Kit. You can buy more components from them to expand you building.
Inventr.io main page
Drivers and software
I now have an Arduino Mega 2560 and 4 Arduino Hero UNO devices connected on an I2C bus. I also picked up 9V-1A power supplies, toggle switches, and other bread boards to start building some amazing projects.
It comes with leds, buttons, wires, and other stuff. This board programs in C#.
Look at the 4 packages of resistors? What are they?
I added in this cool chart on how to determine what a resistor is.
1.) You can look at the color bars on it
2.) You can pull out a multimeter and check it
Pull-Up Resistor: Wikileak
When and Why do LEDs Need Current Limiting Resistors? Waveformlighting.com
So here is the first resistor.
Brown – black – black – orange – brown.
Brown: 1
Black: 0
Black: 0
Orange: x 1000
Brown: +- 1%
100,000 ohms or 100kΩ
The tolerance is +- 1%. The multimeter reads 99.6kΩ
Brown – black – black – red – brown.
Brown: 1
Black: 0
Black: 0
Red: x 100
Brown: +- 1%
10,000 ohms or 10kΩ
The tolerance is +- 1%. The multimeter reads 10.01kΩ
Brown – black – black – brown – brown.
Brown: 1
Black: 0
Black: 0
Brown: x 10
Brown: +- 1%
1,000 ohms or 1kΩ
The tolerance is +- 1%. The multimeter reads 1.003kΩ
Red – red – black – gold
Red: 2
Red: 2
Black: 0
Gold: +- 5%
220 ohms or 220Ω
The tolerance is +- 5%. The multimeter reads 214kΩ
LED
LEDs
The LED is 1.5V / 25mA, according to the site. You have a flat side that on the side of the shorter pin. This is the negative. The longer pin is the positive.
The device is 3.3V and 5V
5V:
5V – 1.5V = 3.5V has to be dissipated
V = I x R or Voltage = current x resistance
3.5V = 0.025A x R
R = 3.5V / 0.025A
R = 140Ω
The smallest resistor you can use is 140Ω. Our kit has 220Ω for the LED.
3.3V:
3.3V – 1.5V = 1.8V has to be dissipated
V = I x R or Voltage = current x resistance
1.8V = 0.025A x R
R = 1.8V / 0.025A
R = 72Ω
The smallest resistor you can use is 140Ω. Our kit has 220Ω for the LED. Amazon has the kits.