{"product_id":"adafruit-1269-1270-1-2-4-digit-7-segment-display-w-i2c-backpack-yellow-red","title":"Adafruit 1269\/1270 1.2\" 4-Digit 7-Segment Display w\/I2C Backpack (Yellow \/ Red)","description":"\u003cmeta name=\"description\" content=\"Buy Adafruit 1269\/1270 1.2\" display w backpack red online in india at best price from the engineer store bengaluru. authentic product warranty on manufacturing defects fast delivery across india.\u003e\n\n\u003ch1\u003eAdafruit 1269\/1270 1.2\" 4-Digit 7-Segment Display w\/I2C Backpack (Yellow \/ Red)\u003c\/h1\u003e\n\n\u003cp\u003eThe Adafruit 1269\/1270 is a bright 1.2-inch 4-digit 7-segment LED display module with an integrated I2C backpack that simplifies microcontroller integration by reducing GPIO pin requirements from 12 to just 2 (SDA and SCL). Electronics engineers, IoT developers, and hobbyists use this display for real-time data visualization in projects requiring minimal wiring complexity and maximum code simplicity. This product solves the critical problem of pin scarcity on microcontroller boards while delivering high-brightness numerical output for industrial monitoring systems, digital clocks, temperature displays, and data logging applications.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe Adafruit 1269\/1270 combines a high-brightness common-cathode 7-segment LED display with an HT16K33 LED driver IC on the backpack board. The HT16K33 communicates via I2C protocol at standard addresses (0x70 default), managing all 28 LED segments (4 digits × 7 segments) through a single 16-bit shift register architecture. The display operates at 5V with typical current draw of 200mA at full brightness, featuring adjustable brightness control through software commands. The yellow variant (1269) and red variant (1270) offer different color options for application-specific visibility requirements, with character height of 1.2 inches providing excellent readability from 2-3 meters distance in ambient lighting conditions.\u003c\/p\u003e\n\n\u003cp\u003eThe backpack eliminates the need for complex multiplexing code by handling all timing and segment control internally. The I2C interface operates at standard 100kHz or fast 400kHz speeds, compatible with Arduino, Raspberry Pi, STM32, and any microcontroller with I2C support. Built-in colon and decimal point LEDs enable time display and decimal number representation. The module includes 0.1-inch spaced header pins for breadboard integration and accepts 5V power with integrated voltage regulation for the LED driver circuit. Adafruit provides comprehensive Arduino libraries with pre-written functions for number display, decimal positioning, and brightness adjustment, reducing development time significantly.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e4-Digit 7-Segment LED Display with I2C Backpack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAdafruit Industries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Size\u003c\/td\u003e\n\u003ctd\u003e1.2 inches character height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Type\u003c\/td\u003e\n\u003ctd\u003eCommon-cathode 7-segment with decimal points and colon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver IC\u003c\/td\u003e\n\u003ctd\u003eHT16K33 16-bit LED controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eI2C (100kHz or 400kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e200mA typical at full brightness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor Options\u003c\/td\u003e\n\u003ctd\u003eYellow (1269) or Red (1270)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI2C Address\u003c\/td\u003e\n\u003ctd\u003e0x70 default, configurable via solder bridges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eI2C Communication: Requires only 2 GPIO pins (SDA, SCL) instead of 12, preserving microcontroller resources for other functions and simplifying PCB layout design\u003c\/li\u003e\n\u003cli\u003eHigh Brightness LEDs: 1.2-inch tall characters deliver excellent visibility in daylight and indoor environments up to 3 meters distance with adjustable software brightness control\u003c\/li\u003e\n\u003cli\u003eIntegrated Colon and Decimal Points: Built-in LED segments for time display (HH:MM format) and decimal number representation without additional wiring\u003c\/li\u003e\n\u003cli\u003ePre-written Arduino Library: Adafruit provides complete software stack with functions for number display, decimal positioning, brightness adjustment, and blinking control\u003c\/li\u003e\n\u003cli\u003eBreadboard Compatible: 0.1-inch spaced header pins enable direct insertion into standard breadboards for rapid prototyping without soldering\u003c\/li\u003e\n\u003cli\u003eMultiple I2C Addresses: Configurable via solder bridges allowing up to 8 displays on single I2C bus for multi-digit applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eDigital Clock Modules: Display hours and minutes with colon separator in Arduino-based alarm clocks, desk clocks, and wall-mounted time displays requiring minimal wiring\u003c\/li\u003e\n\u003cli\u003eTemperature Monitoring Systems: Real-time temperature readout in laboratory equipment, HVAC systems, and industrial process control where I2C sensors connect directly to the display backpack\u003c\/li\u003e\n\u003cli\u003eFrequency Counter Displays: Show frequency measurements in electronic test equipment and amateur radio projects with automatic decimal point positioning for MHz or kHz ranges\u003c\/li\u003e\n\u003cli\u003eIndustrial Data Logging: Display sensor readings, production counts, or error codes in factory automation systems where multiple displays require individual I2C addresses on shared bus\u003c\/li\u003e\n\u003cli\u003eEducational Robotics: Teach microcontroller programming and I2C protocol fundamentals using visual feedback with minimal code complexity compared to direct GPIO multiplexing\u003c\/li\u003e\n\u003cli\u003eBattery Voltage Monitoring: Display DC voltage readings from power supplies and battery systems in portable equipment with adjustable brightness to reduce power consumption\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\n\u003cp\u003eConnect the display to your microcontroller using I2C protocol: wire the GND pin to ground, VCC to 5V, SDA to the microcontroller's SDA pin (Arduino A4 on Uno, GPIO 20 on Raspberry Pi), and SCL to the microcontroller's SCL pin (Arduino A5 on Uno, GPIO 21 on Raspberry Pi). Install the Adafruit LED Backpack library via Arduino IDE Library Manager or download from GitHub. Initialize the display in your code with Adafruit_7segment display; display.begin(0x70); then use display.print(1234); to show a 4-digit number, display.writeDisplay(); to update the physical display, and display.setBrightness(15); to set brightness from 0-15.\u003c\/p\u003e\n\n\u003cp\u003eFor decimal point control, use display.writeDigitNum(position, value, decimal_point_flag); where position ranges 0-3 (left to right). The colon is controlled separately with display.drawColon(true\/false);. Adjust I2C address by soldering bridge pads on the backpack if connecting multiple displays to the same bus. The display updates via I2C at 400kHz speed, allowing refresh rates up to 100Hz without blocking other operations. Refer to Adafruit's comprehensive documentation and example sketches for advanced features like dimming animations and multiplexed data display from multiple sensors.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I connect multiple Adafruit 1269\/1270 displays to one microcontroller?\u003c\/summary\u003e\n\u003cp\u003eYes, up to 8 displays can be connected to the same I2C bus by configuring different I2C addresses through solder bridges on each backpack. Each display has address selection pads labeled A0, A1, A2 that can be soldered to change the default 0x70 address. This allows you to control 32 total digits from a single microcontroller using just 2 GPIO pins.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Adafruit 1269 (Yellow) and 1270 (Red)?\u003c\/summary\u003e\n\u003cp\u003eThe only difference is the LED color: model 1269 features yellow LEDs while model 1270 features red LEDs. Both have identical electrical specifications, I2C backpack functionality, brightness, and software compatibility. Choose based on your application's visibility requirements and aesthetic preferences.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDoes this display work with 3.3V microcontrollers like Raspberry Pi or Arduino Due?\u003c\/summary\u003e\n\u003cp\u003eThe display itself requires 5V power for proper LED brightness. However, the I2C logic levels are tolerant of 3.3V signals from the microcontroller pins. Connect VCC to 5V, GND to common ground, and the SDA\/SCL lines directly to your 3.3V microcontroller. The HT16K33 driver IC accepts 3.3V I2C signals while driving 5V LEDs, making it compatible with both 5V and 3.3V systems.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum brightness and can it be dimmed?\u003c\/summary\u003e\n\u003cp\u003eThe display has 16 brightness levels (0-15) controlled via the setBrightness() function. Level 15 is maximum brightness consuming approximately 200mA at full display load. You can reduce brightness to save power in battery-powered applications or to reduce light pollution in dark environments. Brightness can be adjusted in real-time without restarting the microcontroller.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Engineer Store\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy Adafruit 1269\/1270 1.2\" 4-Digit 7-Segment Display w\/I2C Backpack (Yellow \/ Red) Online in India\u003c\/h2\u003e\n\n\u003cp\u003ePurchase the Adafruit 1269\/1270 1.2\" 4-Digit 7-Segment Display w\/I2C Backpack (Yellow \/ Red) online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Adafruit\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43856822861987,"sku":"TES-EV00082224","price":2002.34,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/1269-05-228x228.jpg?v=1704281173","url":"https:\/\/www.theengineerstore.in\/zh-hant\/products\/adafruit-1269-1270-1-2-4-digit-7-segment-display-w-i2c-backpack-yellow-red","provider":"The Engineer Store","version":"1.0","type":"link"}