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Description。The PQ12 series of micro linear actuators are ideal for applications requiring precise positioning and compact size. Weighing in at just 22 grams， the PQ12 is incredibly light as well as compact. The affordably-priced PQ12 is the most powerful actuator of it's size. This is why it has become a popular choice for OEM manufacturers as well as Arduino and RC hobbyists. Some industries where the PQ12 are in use include：prosthetics， robotics， medical， simulation.。The PQ12-R series of linear servos operate as a direct replacement for standard rotary servos. They use the same standard 3 wire connector， ground power and control. Regardless of how you drive your servos， be it with an RC receiver， an Arduino board， or a VEX micro-controller， the PQ12-R servo will function in place of a regular servo， but with the added benefit of providing linear motion. The PQ12-R is available in a 20mm stroke coupled with gear ratio options of 30：1， 63：1 and 100：1 cover a large variety of applications.。The PQ12-100-6-R has：a 100：1 gear ratio for maximum lifting force； 6VDC operating voltage； and a servo(PWM)interface. This powerful little actuator can lift 50N(～5kg)!。The datasheet doesn't mention a minimum operating voltage， but we've tested this actuator at 5VDC and it seems to work just fine. The maximum force and movement speed are reduced of course.。Features。Gearing Option：100：1。Peak Power Point：40N @ 6mm/s。Peak Efficiency Point：20N @ 8mm/s。Max Speed(no load)：10mm/s。Max Force(lifted)：50N。Max Side Load：10N。Back Drive Force：35N。Stroke：20 mm。Input Voltage：6 VDC。Stall Current：550mA @ 6V。Mass：22g。Operating Temperature -10℃ to +50℃。Positional Repeatability：±0.1mm。Mechanical Backlash：0.25 mm。Audible Noise：55dB @ 45cm。Ingress Protection：IP-54。Maximum Duty Cycle：20%。PWM(Servo)signal：Fully retracted：2.0ms @ 50Hz。Fully extended：1.0ms @ 50Hz

。Description。The SparkFun 2D Barcode Scanner Breakout is a nifty little breakout board featuring the DE2120 barcode scanner module from DYScan. The DE2120 reads 20 different barcode symbologies(both 1D and 2D)using a camera coupled with on-board image processing to identify and decode everything from UPC codes to QR codes. The module also features two LEDs：one for illumination and one to project the red line that you're used to seeing from laser-based scanners.。This breakout board makes it easy to explore all of the capabilities of the DE2120 without dealing with finicky flat flex cables. The scanner's USB interface is exposed via the on-board USB-C connector. A buzzer and status LED are connected to the module through appropriate drive circuits and a push button tactile switch is provided on the "trigger" pin. When you're ready to incorporate the module into your embedded project， you can leverage the 5 pin header for direct access to the TTL serial pins， power pins， and trigger input.。The module can be configured either by using the serial interface or by scanning command barcodes found in the Settings Manual.。All keyboard， HID， and serial can be transmitted over the single USB-C connector. The DE2120 has the unique ability to enumerate all three protocols including a CDC serial driver so the device appears as a standard COM port.。Get Started with the 2D Barcode Scanner Breakout Hookup Guide。Features。USB-C Connector for USB HID Interface and Virtual COM port。Reads 20 different symbologies。1D Symbologies。UPC-A。UPC-E。EAN-8。EAN-13。Code 128。GS1-128。Code 39。Code 93。Code 11。Interleaved 2-of-5。Matrix 2-of-5。Industrial 2-of-5。Codabar。MSI。GS1 DataBar。Datalogic 2-of-5。2D Symbologies。QR Code。Data Matrix。PDF 417。Micro PDF 417。Aztec Code

Description。The SparkFun Pulse Oximeter and Heart Rate Sensor is an I2C based biometric sensor， utilizing two chips from Maxim Integrated：the MAX32664 Biometric Sensor Hub and the MAX30101 Pulse Oximetry and Heart Rate Module. While the latter does all the sensing， the former is an incredibly small and fast Cortex M4 processor that handles all of the algorithmic calculations， digital filtering， pressure/position compensation， advanced R-wave detection， and automatic gain control. We've provided a Qwiic connector to easily connect to the I2C data lines but you will also need to connect to two additional lines. This board is very small， measuring at 1in×0.5in(25.4mm×12.7mm)， which means it will fit nicely on your finger without all the bulk.。The MAX30101 does all the sensing by utilizing its internal LEDs to bounce light off the arteries and arterioles in your finger's subcutaneous layer and sensing how much light is absorbed with its photodetectors. This is known as photoplethysmography. This data is passed onto and analyzed by the MAX32664 which applies its algorithms to determine heart rate and blood oxygen saturation(SpO2). SpO2 results are reported as the percentage of hemoglobin that is saturated with oxygen. It also provides useful information such as the sensor's confidence in its reporting as well as a handy finger detection data point. To get the most out of the sensor we've written an Arduino Library to make it easy to adjust all the possible configurations.。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 Pulse Oximeter and Heart Rate Monitor Hookup Guide。Features。SparkFun Pulse Oximeter and Heart Rate Sensor。MAX30101 and MAX32664 sensor and sensor hub。Qwiic connectors for power and I2C interface。I2C Address：0x55。MAX30101 - Pulse Oximeter and Heart-Rate Sensor。Heart-Rate Monitor and Pulse Oximeter Sensor in LED Reflective Solution。Integrated Cover Glass for Optimal， Robust Performance。Ultra-Low Power Operation for Mobile Devices。Fast Data Output Capability。Robust Motion Artifact Resilience。MAX32664 - Ultra-Low Power Biometric Sensor Hub。Biometric Sensor Hub Solution。Finger-Based Algorithms Measure Pulse Heart Rate and Pulse Blood Oxygenation Saturation(SpO2)。Both Raw and processed data are available。Basic Peripheral mix optimizes size and performance