博文

21. Arduino learning notebook-- Experiment of controlling steering engine

图片
21. Arduino learning notebook-- Experiment of controlling steering engine
Juvtmall ( a company supply PCB PrototypingPCBA service and sell kinds of components, modules and so on) ( Catduino has the same function of Arduino)
Here use Arduino duemilanove to control the rotation of steering engine through a potentiometer.
Material preparation: A arduino duemilanove A 10K potentiometer A steering engine A breadboard Some connected wires
It should be noted here, do not use the computer usb to supply power, because if the current demand is greater than 500ma, the usb may be burned, it is recommended to use the external power supply.
The left and rightpins of the potentiometer are connected with 3.3V and GND respectively,the middle pin is connected with the analog port 0.Steering engine is connected with 5V and GND, the signal port is connected to the digital port 7.

20.Arduino learning notebook--Use Arduino Duemilanove to download the bootloader to other chips

图片
20.Arduino learning notebook--Use Arduino Duemilanove to download the bootloader to other chips

Juvtmall ( a company supply PCB PrototypingPCBA service and sell kinds of components, modules and so on) ( Catduino has the same function of Arduino)

In this experiment, we use Arduino Duemilanove to download the bootloader to the chip.
Note: after testing this method of downloading the bootloader, we found that it only can be tested successfully onusing the 328P of Arduino Duemilanove, Arduino nano.
Material preparation: 1.A control board of Arduino Duemilanove/UNO/NANO 2.A 100 Ω resistance 3. Two 22p capacitors 4. A 16M Hz rystal Oscillator

19.Arduino learning notebook--Atmega8 makes the minimum arduino system

图片
19.Arduino learning notebook--Atmega8 makes the minimum arduino system

Juvtmall ( a company supply PCB PrototypingPCBA service and sell kinds of components, modules and so on) ( Catduino has the same function of Arduino)

Atmega8 is the cheapest of the arduino's officially supported chips, so we'll take it to explain how to make the arduino minimum system on the breadboard. Prepare the material 1. One Atmega8 DIP packaging chip 2.One 16MHz Crystal Oscillator 3. Two 22P capacitors One key, One breadboard and some connected wires.
Let's look at this chip