Overview
In this tutorial, you’ll learn how to use Arduino LCD keypad shield with 3 practical projects.
What You Will Learn
How to set up the shield and identify the keys
How to scroll text
How to display special characters
1602 Arduino LCD Keypad Shield Features
Displaying information in electronic projects has always been the most compelling issue. There are...
AP3216 Sensor Features
The AP3216C is an integrated ALS & PS module that includes a digital ambient light sensor [ALS], a proximity sensor [PS], and an IR LED in a single package. This module is well suited to applications under clear glass or darkened glass. The proximity function is targeted specifically towards near field application and detects external object with simple configurable zone controlled by registers.Â
Note
You need a 220 to 470 ohm resistor to interface this module.
...
CJMCU-0201 Double Touch Sensor Features
A touch sensor is a type of switch that only has to be touched by an object to operate. Touch sensors work completely similar to a switch. This sensor has two separate pads and can be used as two separate switches.
Note
When this switch is subjected to touch, the output voltage will be HIGH, otherwise it is LOW.
Note
The output current is very low (about 40 mA). If you want to connect a higher current device to this switch, you must add a rela...
Inductive Proximity Sensor LJ12A3-4-Z/BY Features
A proximity sensor is a sensor able to detect the presence of nearby objects. The inductive proximity sensor LJ12A3-4-Z / BY has three pins, two of which are connected to a supply voltage of 6 to 36V. The output pin is PNP and NO (Normally Open). That is, it is normally Low and when it detects an object, it is HIGH. The detection distance is 4 mm and it can only detect metal objects such as copper, aluminum, iron, etc.
Note
Because the operatio...
LJ12A3-4-Z/BX Inductive Proximity Sensor Features
Proximity sensors are used to detect the presence of nearby objects. The LJ12A3-4-Z / BX sensor has three pins, two of which are connected to a supply voltage of 6 to 36 V. The output pin is PNP and NO (Normal Open). That is, it is normally Low and when it detects an object, it becomes HIGH. The detection distance is 4 mm, and it can only detect metal objects such as copper, aluminum, iron, etc.
Note
Since the operation voltage is more than 5 V,...
Overview
There are two main ways to program the STM32F103C8T6 module, also known as the STM32 Blue Pill:
• Serial and USB to TTL converter
• ST-Link
Tip
Sometimes you might find out that the STM32 module you have is not original. And it can’t be programmed through serial.
Therefore, we suggest you use ST-Link to program the STM32 Blue Pill.
Required Materials
Hardware Components
STM32F103C8T6 Blue Pill
×
1
ST-Link/V2 Programmer
×
1
Male to Male Jumper Wire
×
1
Software Apps
Ar...
Introduction
Thermometers and temperature sensors are widely used in many sectors. With advancements in science and technology, different methods and sensors have been developed to measure temperature. These sensors are used in various areas, including industry, homes, labs, and more.
Many of these sensors and modules are designed for easy integration with microcontrollers and microprocessor systems. For example, these sensors are designed to work with microcontrollers like Arduino, considering factors such...
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