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I2C 2004 LCD module, จอแสดงผล LED, module จอ, arduino, diy
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ตัวอย่างวิดีโอการใช้งาน LCD2004 arduino Datasheet https://opencircuit.nl/ProductInfo/1000061/I2C-LCD-interface.pdf Product features: The I2C 2004 LCD module is a 4 line by 20 character display interfaced to an I2C daughter board. The I2C interface only requires 2 data connections, +5 VDC and GND to operate For in-depth information on I2C interface and history, visit: http://www.wikipedia/wiki/i2c การต่อ LCD i2C กับ Arduino  ทั้งนี้ เนื่องจากเป็นการต่อแบบ i2C แต่ละบอร์ดจะมี pin i2C ในตำแหน่งที่แตกต่างกัน pinout ของบอร์ดต่างๆในตระกูล Arduino รุ่นต่างๆ จะต้องถูกเปลี่ยนไปตามนี้
ตัวอย่าง Arduino และ LCD 2004 สั่ง hello world /** * www.arduinoNa.com * ตัวอย่างการใช้งาน LCD 2004 แบบ I2C */ #include <Wire.h> #include <LiquidCrystal_I2C.h> // Set the LCD address to 0x27 for a 20 chars and 4 line display LiquidCrystal_I2C lcd(0x27, 20, 4); void setup() { // initialize the LCD lcd.begin(); // Turn on the blacklight and print a message. lcd.backlight(); lcd.print("Hello, arduinoNa.com!"); } void loop() { // Do nothing here... }      |
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Exchange or return policy
Every item comes with a 30-day warranty. However, there are certain conditions that apply:
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The customer should not be responsible for any self-inflicted damage, such as incorrect power connections (for example, supplying 5V instead of the required 3.3V for a sensor).
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The product must be in perfect condition, without any breakage or damage caused by electricity (e.g., short circuits leading to electrical fires).
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The store does not accept product exchanges due to customer misunderstandings, such as purchasing the wrong size for their project or buying something without eventually using it. Customers can inquire about the product details and ensure compatibility before making a purchase by contacting us through our Line account @modulemore during business hours. Please note that there may be delays in response between 12:00 PM and 2:00 PM.
Return Policy: To initiate a product return, customers must provide the original receipt or a copy for quick verification. Returns can be sent to our store address by following these guidelines:
- Provide a detailed description of the damaged item(s).
- Mention any tests or experiments conducted by the customer.
Please note that the store reserves the right to make the final decision regarding product replacement or refund.
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Arduino compatible board, Iot, ESP32, ESP8266, Nodemcu, Raspberry pi, micro:bit and etc.
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E-mail : paheyisoicus@gmail.com
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