Filtri

Zadnje ogledano

I2C - SPI CHARACTER LCD BACKPACK, ADAFRUIT 292

  • Auf Lager JA, 58 Stk. pri dobavitelju
  • Lieferung 7 Tage
  • Marke: ADAFRUIT
  • ID-Nummer: 729/56
13,54 €

DESCRIPTION

 

LCD backpacks reduce the number of pins needed to connect to an LCD. LCDs are a fun and easy way to have your microcontroller project talk back to you. Character LCDs are common, and easy to get, available in tons of colors and sizes. Adafruit've written tutorials on using character LCDs with an Arduino (or similar microcontroller) but find that the number of pins necessary to control the LCD can be restrictive, especially with ambitious projects. Adafruit wanted to make a 'backpack' (add-on circuit) that would reduce the number of pins without a lot of expense.

 

By using simple i2c and SPI input/output expanders adafruit have reduced the number of pins (only 2 pins are needed for i2c) while still making it easy to interface with the LCD. For Arduino users, adafruit provide a easy-to-use library that is backwards compatible with projects using the '6 pin' wiring. The breakout comes with a 2-pin and 3-pin terminal block as shown (you can snap it together to make a 5-pin terminal and then solder it to the backpack for easy wiring)

 

This backpack will work with any 'standard' character LCD, from 8x1 to 20x4 sizes! As long as they have a 16-pin single-line connection header at the top. Adafruit carry a few LCDs that work great. Adafruit suggest using our blue & white 20x4 or 16x2 LCDs. It does not work with the 16x2 OLED displays. You can try to connect our RGB 16x2 or 20x4 LCDs up but this backpack will not control the RGB backlight so you'll have to use the backpack only for the 14 digital IO pins (pins #1-14) and connect the backlight pins (#15-#18) directly to your microcontroller with 4 extra wires for color/PWM control as if they were just an RGB LED.

 

For advanced users, this project can be used for general purpose I/O expansion, the MCP23008 has 8 i/o pins (7 are connected) with optional pull-ups, the SPI 74HC595 has 7 connected outputs.

 

For a detailed tutorial on usage, including an Arduino library, wiring diagrams, and files, please visit the product page

 

TECHNICAL DETAILS

 

This board/chip uses I2C 7-bit address between 0x20-0x27, selectable with jumpers

 

Specifikacije

Glavno

Processor
Broadcom BCM2837B0, Cortex-A53 64-bit SoC @ 1.4 GHz
Memory
512MB LPDDR2 SDRAM
Connectivity
2.4 GHz and 5 GHz IEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2/BLE
Access
Extended 40-pin GPIO header
Video & sound:
1 × full size HDMI

Dimenzije

Dolžina
99 mm
Širina
207 mm
Višina
208 mm
Opozorilo! Vsebina lahko vsebuje napake.