{"title":"Breakout Boards","description":"\u003cp\u003eBrowse our Breakout Boards collection. Free Shipping.\u003c\/p\u003e","products":[{"product_id":"chronodot-v3-high-precision-rtc","title":"ChronoDot V3 High Precision RTC","description":"\u003cp\u003eThe ChronoDot RTC is an accurate real time clock module, based on the MAX31328 temperature compensated RTC (TCXO). It includes a CR1632 battery which should last at least 8 years if the I2C interface is only used while the device has 5V power available. No external crystal or tuning capacitors are required.\u003cbr\u003e\u003cbr\u003eThe MAX31328 has an internal crystal and a switched bank of tuning capacitors. The temperature of the crystal is continuously monitored, and the capacitors are adjusted to maintain a stable frequency. Other RTC solutions may drift minutes per month, especially in extreme temperature ranges. The ChronoDot will drift less than a minute per year. This makes the ChronoDot very well suited for time critical applications that cannot be regularly synchronized to an external clock. The ChronoDot can deliver ± 3.5ppm accuracy across the entire -40C to +85C temperature range, but can be significantly more accurate (1ppm) near room temperature (22C).\u003cbr\u003e\u003cbr\u003eThe ChronoDot will plug into a standard solderless breadboard and also has mounting holes for chassis installation.\u003cbr\u003e\u003cbr\u003eThe I2C interface is very straightforward and virtually identical to the register addresses of the popular DS1337 and DS1307 RTCs, which means that existing code for the Arduino, Basic Stamp, Raspberry Pi, and other controllers should work with no modification. The interface is exactly identical to the DS3231 chip used in previous ChronoDot versions, meaning DS3231-specific functions such as temperature reading will also work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eThe breadboard is \u003cstrong\u003eNOT\u003c\/strong\u003e included.\u003c\/p\u003e\n\u003chr\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eLithium Battery Shipping:\u003c\/strong\u003e\u003c\/span\u003e Due to courier restrictions, this product can only be shipped within the United Kingdom. With this item in your cart your shipping options will be limited and may cost more than our usual rates. Why?\u003chr\u003e\n\u003ch2\u003e Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eController\u003c\/strong\u003e: Maxim MAX31328\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction\u003c\/strong\u003e: Temperature-compensated RTC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: ± 3.5ppm at -40C to +85C (~1 minute per year)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply\u003c\/strong\u003e: 2.3 to 5.5 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent\u003c\/strong\u003e: 200uA (active), 820nA (timekeeping)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCB Size\u003c\/strong\u003e: 1.2 x 1.0 inches (30.5 x 25.8 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Spacing\u003c\/strong\u003e: 0.1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Spacing\u003c\/strong\u003e: 0.9 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"panel-collapse collapse in\" id=\"tab-technical-details-content\"\u003e\n\u003cul id=\"product-files\"\u003e\u003c\/ul\u003e\n\u003cdiv class=\"row\"\u003e\n\u003ch2 class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Wiki\u003c\/li\u003e\n\u003cli\u003eChronoDotDesignFiles.zip (right-click and \"save as\")\u003c\/li\u003e\n\u003cli\u003eChronoDotV2.1DesignFiles.zip (right-click and \"save as\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"The Pi Hut","offers":[{"title":"Default Title","offer_id":48401525080285,"sku":"uic1787257263987","price":12.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/1875\/4525\/files\/chronodot-v3-high-precision-rtc_1.jpg?v=1787257272"},{"product_id":"tca9548a-i2c-multiplexer","title":"TCA9548A I2C Multiplexer","description":"\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe TCA9548A I2C multiplexer lets you connect up to 8 same-address I2C devices to one microcontroller. Select channels by writing a byte to address 0x70 (adjustable to 0x77). Stack up to 8 multiplexers for 64 devices.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eFound the perfect I2C sensor, then hit the classic problem: the address is fixed, so you can’t use two of the same sensors on the same SDA\/SCL lines. That’s exactly what the TCA9548A 1-to-8 I2C multiplexer is for.\u003c\/p\u003e\n\u003cp\u003eThis handy Adafruit board lets you connect up to 8 I2C devices with the same address to a single microcontroller by acting as a gatekeeper. You simply select which channel you want to talk to, and the multiplexer routes all I2C traffic to that set of pins.\u003c\/p\u003e\n\u003cp\u003eThe multiplexer itself sits at I2C address 0x70, but it can be changed to any address from 0x70 to 0x77. To switch channels, you write a single byte to choose the output port, and from then on, any I2C packets are sent to that selected channel. In theory, you can run up to 8 multiplexers at addresses 0x70–0x77, giving you control of up to 64 same-address I2C devices.\u003c\/p\u003e\n\u003cp\u003eAs with Adafruit breakouts, the chip is mounted on a breadboard-friendly board with the supporting components needed to make wiring simple. You’ll need to solder on the included header so it can plug into a solderless breadboard. The TCA9548A is 3V and 5V compliant, so it works with either logic level.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note,\u003c\/strong\u003e You may get an off-white or black JST connector.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/o_QivoOFjuM?si=VS-INhMPThesQtk1\u0026amp;start=352\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 1.8g\u003c\/li\u003e\n\u003cli\u003eDimensions: 30.6mm x 17.6mm x 2.7mm\u003c\/li\u003e\n\u003cli\u003eSelectable I2C address 0x70-0x77\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDocuments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x TCA9548A I2C Multiplexer\u003c\/li\u003e\n\u003cli\u003e2x 16-pin headers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":48401525113053,"sku":"lgg1787257265144","price":4.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/1875\/4525\/files\/tca9548a-i2c-multiplexer_1.jpg?v=1787257273"}],"url":"https:\/\/freshstepfashion.shop\/collections\/breakout-boards.oembed","provider":"My Store","version":"1.0","type":"link"}