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。Description。Add another eight pins to your microcontroller using a MCP23008 port expander. The MCP23008 uses two I2C pins which can be shared with other I2C devices， and in exchange gives you eight general purpose pins. You can set each of eight pins to be input， output， or input with a pullup. There's even the ability to get an interrupt via an external pin when any of the inputs change so you don't have to keep polling the chip.。Use this chip from 2.7-5.5V(good for any 3.3V or 5V setup)， and you can sink/source up to 20mA from any of the I/O pins so this will work for LEDs and such. Team it up with a high-power MOSFET if you need more juice. DIP package means it will plug into any breadboard or perfboard.。You can set the I2C address by tying the ADDR0-2 pins to power or ground， for up to eight unique addresses. That means eight chips can share a single I2C bus - that's 64 I/O pins!。Features。8-bit remote bidirectional I/O port。High-speed I2C interface(MCP23008)。Hardware address pins。Configurable interrupt output pin。Configurable interrupt source。Polarity Inversion register for input port data polarity config.。External reset input。Low standby current：1 μA(max.)・ Operating voltage：。1.8V to 5.5V @ -40℃ to +85℃ I2C @ 100 kHz SPI @ 5 MHz。2.7V to 5.5V @ -40℃ to +85℃ I2C @ 400 kHz SPI @ 10 MHz。4.5V to 5.5V @ -40℃ to +125℃ I2C @ 1.7 kHz SPI @ 10 MHz

Description。The ANN-MB-00 GNSS multiband antenna is extremely unique from other GNSS/GPS antennas in that it is designed to receive both the classic L1 GPS band and the newly launched(started in 2005)L2 GPS band. Additionally， the ANN-MB-00 from u-blox is extremely well built with both a magnetic base with mounting holes for additional anchoring for the harshest environments.。Designed for the latest u-blox F9 platform--including the ZED-F9P module--it provides a fast， easy， and reliable multi-band antenna solution but can be used with any GPS/GNSS receiver that can benefit from the L1/L2 dual reception.。This antenna supports GPS， GLONASS， Galileo， and BeiDou and includes a high-performance multi-band RHCP dual-feed patch antenna element， a built-in high-gain LNA with SAW pre-filtering， and a 5m SMA cable.。Features。Frequency：L1 Band：1559-1606MHz。L2/L5 Band：1197-1249MHz。Peak gain(over 15cm diameter ground plane)：L1 Band：3.5dBic。L2/L5 Band：0-2.0dBic。VSWR：max. 2。Bandwidth：min. 200MHz。Impedance：50 Ohm。Polarization RHCP。Supports GPS， GLONASS， Galileo， and BeiDou。5m coaxial cable with SMA connector。Magnetic base， fixed installation option(screw mount， 2×M4 screws)。Dimensions：60.0mm×82.0mm×22.5mm。Weight：175g(including cable)

Description。The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface， accessed over our Qwiic system. Inside the chip are two temperature sensors， one for the thermocouple itself(the hot junction)and one for the chip itself(the cold junction). As a result， the MCP9600 can read both the ambient temperature and the temperature of whatever you're trying to measure! The MCP9600 can do both with a resolution of 0.0625℃， and an accuracy of ±1.5℃(worst-case). The MCP9600 Thermocouple Amplifier is one of our many Qwiic compatible boards! Simply plug and go. No soldering， no figuring out which is SDA or SCL， and no voltage regulation or translation required!。This version of the board comes equipped with screw terminals to allow for your own Thermocouple's wiring to be hooked up with the turn of a screw. This makes it perfect for a variety of applications， from measuring the temperature of your Crock-Pot to making sure your backyard induction furnace is up to temperature.。In addition， the MCP9600 has four on-board temperature alerts that you can configure! Instead of constantly polling the sensor over I2C， you can set a temperature limit to trigger an interrupt when the temperature reaches a certain value. This frees up your microcontroller and your I2C bus to do more important things. It's also possible to put the MCP9600 into alternate operation modes in order to save power. The sensor supports a burst mode， where it will take a specified number of samples， return the results， and then go to sleep. This low-power mode makes the MCP9600 perfect for portable applications!。We've written an Arduino library to help you get started quickly. You can download the library through the Arduino library manager by searching 'SparkFun MCP9600' or you can get the GitHub repo as a .zip file and install the library from there.。The SparkFun Qwiic Connect System is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.。Get Started with the Qwiic Thermocouple Amplifier。Features。Temperature Range of -200℃ to 1350℃。Four Onboard Temperature Alerts。Resolution of 0.0625℃。Screw Terminal Connector。ADDR Jumper for variable I2C Addresses(default address of 0x60)。2x Qwiic Connectors