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DescriptionAtmel's itty-bitty ATtiny85 8-Bit Processor. 8K of program space， 6 I/O lines， and 4-channel 10 bit ADC. Runs up to 20MHz with external crystal. Package can be programmed in circuit.

DescriptionIf you're ready to step your Arduino game up from older 8-bit/16MHz microcontrollers， the SparkFun SAMD21 Dev Breakout is a great landing spot. The SparkFun SAMD21 Dev Breakout is an Arduino-sized breakout for the Atmel ATSAMD21G18， a 32-bi

DescriptionThe Binho Nova Multi-Protocol USB Host Adapter allows one to interface their computer directly to hardware circuits. This device is powered by the USB connection to the host PC and is also able to provide downstream power to test circuits.The Binho Nova Multi-Protocol USB Host Adapter features 5 signal pins， one×3v3 pin， one×VUSB pin， and three×GND pins on its 10pin wire harness. The wire harness terminates with a female 1.27mm 2x5 IDC connector. In IO Mode， the five signal pins can be used for varying functions such as Digital Input， Digital Output， PWM Output， Digital Interrupt(on rising edge， falling edge， or change)， Analog Input， or Analog Output.Additionally， the host adapter is able to utilize these pins to communicate on several digital buses：I2C， SPI， UART，(Dallas)1-Wire， and(Atmel)Single-Wire Interface. While in these modes of operation， remaining available pins can be assigned to other related or unrelated purposes such as gpio， interrupts， chip selects， PWM signals， or analog input or outputs.The Binho Nova Multi-Protocol USB Host Adapter is ideal for manual testing during firmware development and debugging as well as a perfect way to automate hardware testing and validation. A common use-case of this product in production environments is for EEPROM/Flash Memory programming along with functional testing activities.FeaturesSupport for SPI @ 12MHz max clockSupport for I2C @ 3.4MHz max clockSupport for UART @ 1000000 max baudSupport for Dallas 1-WireSupport for Atmel Single-Wire InterfaceProvides 3v3 and VUSB power rails1×DAC Output， 5×ADC InputsGPIO / Interrupt / PWM SupportProgrammable RGB Status LEDField-Upgradeable Device FirmwareCross-platform Support for Windows，Mac， LinuxRobust， low-profile AluminumEnclosureUSB Type-C Connector

DescriptionThe SparkFun Continuous Rotation(CR)Servo Trigger is a small robotics board that simplifies the control of hobby RC servo motors. When an external switch or logic signal changes state， the CR Servo Trigger is able to tell an attached servo motor to move from position A to position B. To use the CR Servo Trigger， you simply connect a hobby servo and a switch， then use the on-board potentiometers to adjust the start/stop positions and the transition time. You can use a hobby servo in your projects without having to do any programming!When we introduced the original Servo Trigger， we mentioned that it could be reprogrammed to be more useful with continuous rotation servo motors. But reprogramming the firmware is somewhat tedious， and users asked for a Servo Trigger preprogrammed with the continuous rotation logic. With this little board you will be provided an easy way to deploy continuous rotation servos into your projects!The heart of the CR Servo Trigger is an Atmel ATtiny84 microcontroller， running a small program that implements the servo control features designed for continuous rotation servos. On board each of these CR Servo Triggers you will find three potentiometers："A" sets the position the servo sits in while the switch is open， "B" sets the position the servo moves to when the switch is closed， and "T" sets the time it takes to get from A to B and back.Compared with a servo motor， the CR Servo Trigger board draws very little current， roughly 5mA at 5V. Be sure to note that if you're using the CR Servo Trigger to control your motor， the absolute maximum supply voltage that should be applied is 5.5 VDC. Additionally， the SparkFun CR Servo Trigger is designed to make it easy to daisy chain boards - you can simply connect the VCC and GND pads on adjacent boards to each other.Note：This idea originally came from our friend in the Oakland area， CTP. If you see him， please give him a high-five for us.SparkFun CR Servo Trigger Hookup GuideFeaturesRecommended Voltage：5VDCMax Voltage：5.5VDCCurrent Draw：5mAControl Continuous Rotation ServosThree Control SettingsA - sets the position the servo sits in while the switch is openB - sets the position the servo moves to when the switch is closedC - sets the time it takes to get from A to B and backEasy Control with PotentiometersConfigurable Input PolarityConfigurable Response ModeCompatible with Analog ServosISP Header Pins Available for Reprogram

DescriptionThe Elektor STM32 Nucleo Starter Kit is the perfect entry point into the world of the widely popular STM32 microcontroller line. This bundle covers many projects using most features of the STM32 Nucleo development boards with the full softw