「dole」の検索結果

Description。The Molex GNSS Flex antenna is a great option for basic GNSS applications and will work with any of our GNSS boards equipped with a U.FL at a fraction of the cost of many of its big brothers. This antenna supports GPS， Galileo， BeiDou， and GLONASS in three different frequency bands(1561 +/-3MHz， 1575 +/-3MHz， 1602 +/-3MHz).。The Molex Flexible GNSS Antenna has an incredibly small footprint at 40.40mm×15.40mm， while the adhesive pad is a bit bigger at 56.40mm×20mm. Even better， the antenna is only 0.1mm thick(or about the thickness of a piece of paper). Simply remove the backing and stick this to any surface， or leave the backing on(just be careful of the fragile U.FL connector).。Features。Cable length：50mm。Connector：U.FL。Radiation Pattern：Omnidirectional。Polarization：Linear。Weight：0.466 g。Mounting Style：Adhesive。Protocol：BeiDou， Galileo， GLONASS， GPS。Return Loss：< -8dB。Peak Gain(Max)：1.1 dBi+。Efficiency：>74%。Input Impedance 50 Ohms

。Description。Sometimes we want our projects on， but sometimes we want to turn them off for a while to save power. The SparkFun Nano Power Timer will run while only consuming minimal power(approximately 35nA)and turn your project on after a set amount of time. When you are done polling your sensors， posting data to the web， writing to your logger， or planning world domination， your microcontroller can tell the Nano Power Timer to turn off the power. No more running your microcontroller all day when you only want to read the ambient temperature once per hour.。The TPL5110 delay is configured with the use of resistors. We've added a six-way DIP switch to select one of the five preinstalled resistors. The sixth switch is attached to a pad to add your own PTH(or SMD)resistor. The delays associated with the preinstalled headers are shown on the bottom of the board for quick setup. Additionally， you can select more than one switch to combine the resistors in parallel(up to 26 options not including the custom resistor)， check out the hookup guide for a nice chart as to the total resistance and corresponding delay for each combination.。The Nano Power Timer can handle voltages between 1.8V and 5.5V as well as current up to 1.1A with times from 100ms to two hours(preconfigured settings range from 30s to 2h). You will find a button on the board which will allow you a quick override to the delay so you can turn your project on whenever you like.。Get Started with the SparkFun Nano Power Switch。Features。Supply Voltage：1.8V to 5.5V。Current consumption at 2.5V：35nA Typical(50nA Max)。Selectable Time intervals：100ms to 7200s(2 hours)。Timer Accuracy：1%

。These are high quality Single Pole - Double Throw(SPDT)sealed relays. Use them to switch high voltage、and/or high current devices.。This relay's coil is rated up to 12V、with a minimum switching voltage of 5V. The contacts are rated up to 5A(@250VAC、30VDC).。Note。In the Datasheet below there is a pin layout listed as "Bottom View." Be aware、this pin layout is actually the top-down view NOT bottom-up.

Description。These are the sturdy little stomp switches that you find on guitar effects pedals. They're 3PDT(three-pole， double-throw)type switches. These switches allow you to modify your effects for true bypass and lets you wire a status indicator LED. This is useful for stage performers， as it leaves no question if the "box" is on or off.。These are the same Stomp Switches found in our Proto Pedal Kit. Use these as replacements in some types of effects pedals or， better yet， build your own!

Description。This Digital LED Voltmeter measures the voltage at a particular point of the system it has been hooked up to and then provides a readout on its three 7-segment LEDs. This voltmeter is able to provide a readout of voltages from 2.5VDC to 30

Description。The SparkFun Load Sensor Combinator is a bare PCB that combines four load sensors into a standard four-wire Wheatstone bridge configuration. If you open up an electronic bathroom scale， you'll find a large rat's nest of wires. The Load Sensor Combinator was created to combine the 12 wires found in a bathroom scale into the standard four-wire Wheatstone bridge configuration.。This version of the SparkFun Load Sensor Combinator features a few changes that you specifically asked for! We updated the silk on the breakout to read "C/+/-" instead of "R/W/B" and moved the temperature sensor connector away from the standoff hole.。You can either use four individual load sensors or simply purchase an off-the-shelf bathroom scale and hack the combinator into it rather than trying to design a base to properly mount four load sensors.。This board works great with our Load Cell Amplifier breakout board； the five pins on the edge of the combinator line up directly to the five pins on the amplifier.。If your amplifier and supporting electronics are more than a few inches away from the scale， an RJ45 footprint is provided. The four Wheatstone pins(E+/E-/S+/S-)as well as the shield pin are connected to twisted pairs within a standard cheap Ethernet cable. This allows the amplifier board to be placed many feet away from the scale itself.。The combinator board also includes a footprint for the DS18B20 one-wire temperature sensor. This allows the user to gather the temperature of the scale in case there is a large variance between the scale and the amplifier. These three pins are accessed through the RJ45 connection as well， allowing remote temperature readings to be gathered over one twisted pair Ethernet cable.。NOTE：。The SparkFun Load Sensor Combinator will only work with 3 wire load sensors， it is not compatible with 4 wire load cells.

Description。This is the FemtoBuck， a small-size single-output constant current LED driver. Each FemtoBuck has the capability to dim a single high-power channel of LEDs from 0-350mA at up to 36V while the dimming control can be either accessed via PWM or analog signal from 0-2.5V. This board is based off of the PicoBuck LED Driver， developed in collaboration with Ethan Zonca， except instead of blending three different LEDs on three different channels the FemtoBuck controls just one.。For the FemtoBuck， we've increased the voltage ratings on the parts to allow the input voltage to cover the full 36V range of the AL8805 driver. Since the FemtoBuck is a constant current driver， the current drawn from the supply will drop as supply voltage rises. In general， efficiency of the FemtoBuck is around 95%， depending on the input voltage. On board each FemtoBuck you will find two inputs for both power input and dimming control pins and an area to install a 3.5mm screw terminal. Finally at either side of the board you will find small indents or "ears" which will allow you to use a zip tie to secure the wires to the board after soldering them down. This version of the FemtoBuck is equipped with a small solder jumper that can be closed with a glob of solder to double the output current from 330mA to 660mA.

Description。This is a 16mm deluxe thumb joystick and is very similar to the 'analog' joysticks found inside PlayStation controllers. Directional movements are provided simply by two potentiometers - one for each axis. These 10k potentiometers will read the position changes for the joystick's full range of physical motion. This joystick also has a select button that is actuated when the joystick is pressed down.。The mechanical parts found in this joystick are mostly metal and are considered far sturdier(rugged， if you will)than other， plastic joystick options.。Note：。This thumb joystick does not include a top cap and it will need to be purchased separately. Additionally， the leads on the housing of this joystick are much thicker than the leads on the trimpots &； push button components. When soldering to BOB-9110， we recommend using a pair of fine tip tweezers to guide each pin into the correct hole before pushing down.

Description。The SparkFun Qwiic LED Stick features ten addressable APA102 LEDs， making it easy to add full color LED control using I2C. Write to individual LEDs to display a count in binary， or write to the whole strip for cool lighting effects. You can even add more LEDs to the end if you need to. We've written an Arduino library and Python package that take care of the I2C and communication to the LEDs so all you have to do is decide what color each LED should be.。The LED Stick has a default I2C address of 0x23 but can be changed with a simple command， allowing you to control up to 100 LEDs(10 Qwiic LED Sticks)on a single bus! The address can also be changed to 0x22 by closing the solder jumper on the back of the board.。This board 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!。Warning：Using a lot of LEDs can draw a lot of current. Make sure to consider the power limits of your setup. If you expect your LED chain to draw more than 600mA of current， connect your external supply directly to VLED. Closing the jumper from VLED to VCC will add a 4.7uF decoupling capacitor.。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 LED Stick Guide。Features。10x APA102C addressable LEDs driven by an ATTiny85。Default I2C Address：0x23(Adjustable to 0x22 via Jumper)。2x Qwiic Connectors

Description。The SparkFun Line Follower Array is a long board consisting of eight IR sensors that have been configured to read as digital bits! We have designed the SparkFun Line Follower Arrays to follow a dark line of about 3/4 inch width or smaller(spray paint or electrical tape)on a light background. Each array features visible LEDs that point upward when the board is attached(properly)so you can see what the robot sees， brightness control right on the board， and an I2C interface for reading and power control. Here at SparkFun， the RedBot Shadow Chassis was used as a test platform but really this was designed as an add-on for almost any bot.。The line follower functions by taking an 8-bit reading of reflectance for use with following lines or reading dark/light patterns and can see from about 1/4 to 3/4 inches away. The IR brightness control and indicator can be adjusted with the on-board potentiometer and is capable of showing you the strength of the IR LEDs. Illumination can be turned on and off with software to conserve power， or left on all the time for faster readings. The SparkFun Line Follower Array requires 5V of power with a supply current range of 25-185mA with strobing disabled and 16-160mA with it enabled. Additionally we have added six mounting holes to the line follower with the two inner holes designed to fit our Shadow Chassis while the other four are general purpose.。Note：As you know our Sun emits quite a bit of infrared light， making the SparkFun Line Follower Array much less effective in direct sunlight. Plan your projects accordingly!。Features。8 sensor eyes(QRE1113， like in our line sensor breakout)。I2C interface。Adjust IR brightness on the fly with a knob。Switch IR on and off with software。Switch visual indicators on and off with software。Invert dark/light sight with software。Based on the SX1509 I/O expander

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

Description。Are you low on I/O? No problem! The SX1509 Breakout is 16-channel GPIO expander with an I2C interface that means with just two wires， your microcontroller can interface with 16 fully configurable digital input/output pins. But the SX1509 can do so much more than just simple digital pin control. It can produce PWM signals， so you can dim LEDs. It can be set to blink or even breathe pins at varying rates. This breakout is similar to multiplexer or "mux，" in that it allows you to get more IO from less pins. And， with built-in keypad engine， it can interface with up to 64 buttons set up in an 8x8 matrix.。Two headers at the top and bottom of the breakout board function as the input and control headers to the board. This is where you can supply power to the SX1509， and where your I2C signals SDA and SCL will terminate. GPIO and power buses are broken out in every-which direction， and configurable jumpers cover most of the rest of the board.。Since the I/O banks can operate between 1.2V and 3.6V(5.5V tolerant)independent of both the core and each other， this device can also work as level-shifter. The SX1509 breakout makes it easy to prototype so you can add more I/O onto your Arduino or I/O limited controller. We've even spun up an Arduino Library to get you started!。Features。Enable Direct Level Shifting Between I/O Banks and Host Controller。5.5V Tolerant I/Os， Up to 15mA Output Sink on All I/Os。Integrated LED Driver with Intensity Control。On-Chip Keypad Scanning Engine Supports Up to 8x8 Matrix(64 Keys)。16 Channels of True Bi-directional Style I/O。400kHz I2C Compatible Slave Interface

Description。The SparkFun MicroMod Environmental Function Board adds additional sensing options to the MicroMod Processor Boards. This Function Board includes three sensors to monitor air quality(SGP40)， humidity temperature(SHTC3)， and CO2 concentrations(STC31)in your indoor environment. To make it even easier to use， all communication is over the MicroMod's I2C bus!。The SGP40 measures the quality of the air in your room or house. The SGP40 uses a metal oxide(MOx)sensor with a temperature controlled micro hotplate and provides a humidity-compensated volatile organic compound(VOC)based indoor air quality signal. Both the sensing element and VOC Algorithm feature an unmatched robustness against contaminating gases present in real world applications enabling a unique long term stability as well as low drift and device to device variation.。The SHTC3 is a highly accurate digital humidity and temperature sensor. The SHTC3 uses a capacitive humidity sensor with a relative humidity measurement range of 0 to 100% RH and bandgap temperature sensor with a temperature measurement range of -40℃ to 125℃. The SHTC3 builds on the success of their SHTC1 sensor with higher accuracy(±2% RH， ±0.2℃)than its predecessor， enabling greater flexibility.。The STC31 measures CO2 concentrations based on thermal conductivity and has two CO2 measurement ranges：0 to 25 vol%； and 0 to 100 vol%. The measurement repeatability is 0.2 vol%， with a stability of 0.025 vol% / ℃. The measurement accuracy depends on the measurement range：0.5 vol% + 3% measured value； 1 vol% + 3% measured value. Using measurements from the SHTC3， the STC31 is able to provide humidity-compensated measurements together with improved temperature compensation. The STC31 can compensate for atmospheric pressure too - which is handy if， like us， you're up in the mountains!。The outstanding performance of these three sensors is based on Sensirion's patented CMOSens(R)technology， which combines the sensor element， signal processing， and digital calibration on a small CMOS chip. The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.。Utilizing our handy M.2 MicroMod connector， no soldering is required to connect it to your system. Simply match up the key on your processor and function board's beveled edge connector to their respective key on the M.2 connector， then secure them to the main board with screws. The MicroMod Environmental Function Board can then be read via the I2C port. The board is equipped with the AP2112 3.3V voltage regulator， I2C pull-up resistors， power LED， jumper to disable the LED， and jumpers for alternative STC31 addresses.。Note：A MicroMod Processor and Main Board are not included with this MicroMod Environmental Function Board. These boards will need to be purchased separately.。MicroMod is a modular interface ecosystem that connects a microcontroller "processor board" to various "carrier board" peripherals. Utilizing the M.2 standard， the MicroMod standard is designed to easily swap out processors and function boards on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!。Get Started with the MicroMod Environmental Function Board。Features。Input voltage range。2.5V to 6.0V。Typ.。5V。via Main Board's USB connector。Typ.。～3.7V to 4.2V。via Main Board's LiPo battery Connector。I/O voltage。3.3V。AP2112 3.3V voltage regulator(rated 600mA)。Power LED。I2C pull-up resistors。Sensirion SGP40 Air Quality Sensor。Uses I2C interface。Address：0x59(default)。Operating voltage range。1.7V to 3.6V(Typ.。3.3V。)。Operating temperature range。-20℃ to +55℃。Typical current consumption。2.6mA。during continuous operation(at 3.3V)。34μA。when idle(heater off)。Output signal。Digital raw value(SRAW)：0 - 65535 ticks。Digital processed value(VOC Index)：0 - 500 VOC index points。Switch-on behavior。Time until reliably detecting VOC events：<60s。Time until specifications are met：<1h。Recommended sampling interval。VOC Index：1s。SRAW：0.5s - 10s(Typ. 1s)。Sensirion SHTC3 Humidity and Temperature Sensor。Uses I2C interface。Address：0x70(default， non-configurable)。Operating voltage range。1.62V - 3.6V(Typ.。3.3V。)。Operating temperature range。-40℃ to +125 ℃。Relative Humidity。Measurement range：0% to 100%。Typical accuracy：±2 %RH。Resolution：0.01 %RH。Temperature。Measurement range：-40℃ to +125 ℃。Typical accuracy：±0.2 ℃。Resolution：0.01 ℃。Typical current consumption(varies based on mode)。4.9μA to 430μA(Normal Mode)。0.5μA to 270μA(Low Power Mode)。Allows the STC31 to compensate for humidity and temperature。Sensirion STC31 CO2 Sensor。Uses I2C interface。Addresses：0x29(default)。， 0x2A， 0x2B， 0x2C。Operating voltage range。2.7V to 5.5V(Typ.。3.3V。)。Operating temperature range。-20 ℃ to +85 ℃。Calibrated for CO2 in N2 and CO2 in air。Measurement ranges。0 to 25 vol% in N2。0 to 100 vol% in air。Accuracy。0.5 vol% + 3% measured value in N2。1 vol% + 3% measured value in air。Concentration and temperature resolution：16-bit。Repeatability：0.2 vol%。Temperature stability：0.025 vol% / ℃。Start-up time：14 ms。Thermal conductivity sensor provides calibrated gas concentration and temperature output。Jumpers。PWR LED。I2C pull-up resistors。STC31 address selection。Note：The I2C addresses that are reserved for each sensor is 0x59(SGP40)， 0x70(SHTC3)， 0x29(STC31). A multiplexer/Mux is required to communicate to multiple SHTC3 sensors on a single bus. The SHTC3 uses the same address as the Qwiic Mux(0x70). For advanced users that are using multiple SHTC3's with the Qwiic Mux， you will need to adjust the Qwiic Mux's default address.