{"title":"Featured items","description":"","products":[{"product_id":"adafruit-trinket-mini-microcontroller-3-3v-logic-microusb","title":"Adafruit Trinket - Mini Microcontroller - 3.3V Logic - MicroUSB","description":"\u003cdiv\u003eDESCRIPTION\u003cbr\u003e\u003cbr\u003eTrinket may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your expensive dev-board and you aren't willing to take apart the project you worked so hard to design. It's our lowest-cost arduino-IDE programmable board!\u003cbr\u003e\u003cbr\u003eAs of May 27th, 2015 the 3.3V Trinket has been revised! The board is now even smaller - at just 27mm x 15mm - and comes with a micro-B USB connector rather than mini-B\u003cbr\u003e\u003cbr\u003eThe Attiny85 is a fun processor because despite being so small, it has 8K of flash, and 5 I\/O pins, including analog inputs and PWM 'analog' outputs. We designed a USB bootloader so you can plug it into any computer and reprogram it over a USB port just like an Arduino. In fact we even made some simple modifications to the Arduino IDE so that it works like a mini-Arduino board. You can't stack a big shield on it but for many small \u0026amp; simple projects the Trinket will be your go-to platform.\u003cbr\u003e\u003cbr\u003eThis is the 3V Trinket. There are two versions of the Trinket. One is 3V and one is 5V. Both work the same, but have different operating logic voltages. Use the 3V one to interface with sensors and devices that need 3V logic, or when you want to power it off of a LiPo battery. The 3V version should only run at 8 MHz. Use the 5V one for sensors and components that can use or require 5V logic. The 5V version can run at 8 MHz or at 16MHz by setting the software-set clock frequency.\u003cbr\u003e\u003cbr\u003eEven though you can program Trinket using the Arduino IDE, it's not a fully 100% Arduino-compatible. There are some things you trade off for such a small and low cost microcontroller!\u003cbr\u003e\u003cbr\u003eTrinket does not have a Serial port connection for debugging so the serial port monitor will not be able to send\/receive data\u003cbr\u003eSome computers' USB v3 ports don't recognize the Trinket's bootloader. Simply use a USB v2 port or a USB hub in between\u003cbr\u003eHere are some useful specifications!\u003cbr\u003e\u003cbr\u003eATtiny85 on-board, 8K of flash, 512 byte of SRAM, 512 bytes of EEPROM\u003cbr\u003eInternal oscillator runs at 8MHz, but can be doubled in software for 16MHz\u003cbr\u003eUSB bootloader with a nice LED indicator looks just like a USBtinyISP so you can program it with AVRdude (with a simple config modification) and\/or the Arduino IDE (with a few simple config modifications)\u003cbr\u003eMicro-USB jack for power and\/or USB uploading, you can put it in a box or tape it up and use any USB cable for when you want to reprogram.\u003cbr\u003eWe really worked hard on the bootloader process to make it rugged and foolproof, this board wont up and die on you in the middle of a project!\u003cbr\u003e~5.25K bytes available for use (2.75K taken for the bootloader)\u003cbr\u003eAvailable in both 3V and 5V flavors\u003cbr\u003eOn-board 3.3V or 5.0V power regulator with 150mA output capability and ultra-low dropout. Up to 16V input, reverse-polarity protection, thermal and current-limit protection.\u003cbr\u003ePower with either USB or external output (such as a battery) - it'll automatically switch over\u003cbr\u003eOn-board green power LED and red pin #1 LED\u003cbr\u003eReset button for entering the bootloader or restarting the program. No need to unplug\/replug the board every time you want to reset or update!\u003cbr\u003e5 GPIO - 2 shared with the USB interface. The 3 independent IO pins have 1 analog input and 2 PWM output as well. The 2 shared IO pins have 2 more analog inputs and one more PWM output.\u003cbr\u003eHardware I2C \/ SPI capability for breakout \u0026amp; sensor interfacing.\u003cbr\u003eWorks with many basic Arduino libraries including Adafruit Neopixel!\u003cbr\u003eMounting holes! Yeah!\u003cbr\u003eReally really small\u003cbr\u003eFor a lot more details, including a tour of the Trinket, pinout details and Arduino IDE examples, check out the Introducing Trinket tutorial\u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":4813995076,"sku":"1500","price":7.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/9150\/products\/1500-07.jpg?v=1441326938"},{"product_id":"adafruit-trinket-mini-microcontroller-5v-logic","title":"Adafruit Trinket - Mini Microcontroller - 5V Logic","description":"DESCRIPTION\u003cbr\u003e\u003cbr\u003eTrinket may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your expensive dev-board and you aren't willing to take apart the project you worked so hard to design. It's our lowest-cost arduino-IDE programmable board!\u003cbr\u003e\u003cbr\u003eThe Attiny85 is a fun processor because despite being so small, it has 8K of flash, and 5 I\/O pins, including analog inputs and PWM 'analog' outputs. We designed a USB bootloader so you can plug it into any computer and reprogram it over a USB port just like an Arduino. In fact we even made some simple modifications to the Arduino IDE so that it works like a mini-Arduino board. You can't stack a big shield on it but for many small \u0026amp; simple projects the Trinket will be your go-to platform.\u003cbr\u003e\u003cbr\u003eThis is the 5V Trinket. There are two versions of the Trinket. One is 3V and one is 5V. Both work the same, but have different operating logic voltages. Use the 3V one to interface with sensors and devices that need 3V logic, or when you want to power it off of a LiPo battery. The 3V version should only run at 8 MHz. Use the 5V one for sensors and components that can use or require 5V logic. The 5V version can run at 8 MHz or at 16MHz by setting the software-set clock frequency.\u003cbr\u003e\u003cbr\u003eEven though you can program Trinket using the Arduino IDE, it's not a fully 100% Arduino-compatible. There are some things you trade off for such a small and low cost microcontroller!\u003cbr\u003e\u003cbr\u003eTrinket does not have a Serial port connection for debugging so the serial port monitor will not be able to send\/receive data\u003cbr\u003eSome computers' USB v3 ports don't recognize the Trinket's bootloader. Simply use a USB v2 port or a USB hub in between\u003cbr\u003eHere are some useful specifications!\u003cbr\u003e\u003cbr\u003eATtiny85 on-board, 8K of flash, 512 byte of SRAM, 512 bytes of EEPROM\u003cbr\u003eInternal oscillator runs at 8MHz, but can be doubled in software for 16MHz\u003cbr\u003eUSB bootloader with a nice LED indicator looks just like a USBtinyISP so you can program it with AVRdude (with a simple config modification) and\/or the Arduino IDE (with a few simple config modifications)\u003cbr\u003eMini-USB jack for power and\/or USB uploading, you can put it in a box or tape it up and use any USB cable for when you want to reprogram.\u003cbr\u003eWe really worked hard on the bootloader process to make it rugged and foolproof, this board wont up and die on you in the middle of a project!\u003cbr\u003e~5.25K bytes available for use (2.75K taken for the bootloader)\u003cbr\u003eAvailable in both 3V and 5V flavors\u003cbr\u003eOn-board 3.3V or 5.0V power regulator with 150mA output capability and ultra-low dropout. Up to 16V input, reverse-polarity protection, thermal and current-limit protection.\u003cbr\u003ePower with either USB or external output (such as a battery) - it'll automatically switch over\u003cbr\u003eOn-board green power LED and red pin #1 LED\u003cbr\u003eReset button for entering the bootloader or restarting the program. No need to unplug\/replug the board every time you want to reset or update!\u003cbr\u003e5 GPIO - 2 shared with the USB interface. The 3 independent IO pins have 1 analog input and 2 PWM output as well. The 2 shared IO pins have 2 more analog inputs and one more PWM output.\u003cbr\u003eHardware I2C \/ SPI capability for breakout \u0026amp; sensor interfacing.\u003cbr\u003eWorks with many basic Arduino libraries including Adafruit Neopixel!\u003cbr\u003eMounting holes! Yeah!\u003cbr\u003eReally really small\u003cbr\u003eFor a lot more details, including a tour of the Trinket, pinout details and Arduino IDE examples, check out the Introducing Trinket tutorial","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":4814084932,"sku":"1501","price":7.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/9150\/products\/1501-03.jpg?v=1441327032"},{"product_id":"stereo-3-7w-class-d-audio-amplifier-max98306","title":"Stereo 3.7W Class D Audio Amplifier - MAX98306","description":"DESCRIPTION\u003cbr\u003e\u003cbr\u003eThis incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 3.7W channels into 3 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, its incredibly efficient (over 90% efficient when driving an 8ë© speaker at over a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. This board is a welcome upgrade to basic \"LM386\" amps!\u003cbr\u003e\u003cbr\u003eThe inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the R- and L- to ground. The outputs are \"Bridge Tied\" - that means they connect directly to the outputs, no connection to ground. The output is a 360KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly.\u003cbr\u003e\u003cbr\u003eComes with a fully assembled and tested breakout board with 1.0uF input capacitors. We also include header to plug it into a breadboard, 3.5mm screw-terminal blocks so you can easily attach\/detach your speakers, and a 2x4 header + jumper to change the amplifier gain on the fly. You will be ready to rock in 15 minutes! Speakers are not included, use any 3ohm or greater impedance speakers.\u003cbr\u003e \u003cbr\u003e\u003cbr\u003eOutput Power: 3.7W at 3ë©, 10% THD, 1.7W at 8ë©, 10% THD, with 5V Supply\u003cbr\u003ePasses EMI limit unfiltered with up to 12 inches (30 cm) of speaker cable\u003cbr\u003eHigh 83dB PSRR at 217Hz\u003cbr\u003eSpread-Spectrum Modulation and Active Emissions Limiting\u003cbr\u003eFive pin-selectable gains: 6dB, 9dB, 12dB, 15dB and 18dB. Select with a jumper or by setting the G and G' breakout pins (see schematic for breakout board showing gain pin settings for details)\u003cbr\u003eExcellent click-and-pop suppression\u003cbr\u003eThermal and short-circuit\/over-current protection\u003cbr\u003eLow current draw: 2mA quiescent and 10uA in shutdown mode","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":4814132548,"sku":"987","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/9150\/products\/987-00.jpg?v=1441327153"},{"product_id":"usb-cable-6-standard-a-b","title":"USB Cable - 6\" Standard A-B","description":"DESCRIPTION\u003cbr\u003e\u003cbr\u003eThis here is your standard A-B USB cable, for USB 1.1 or 2.0. 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The motor was specified to have a max current of 350mA so that it could be driven easily with an Adafruit motor shield for Arduino (or other motor driver) and a wall adapter or lead-acid battery.\u003cbr\u003e\u003cbr\u003eSome nice details include a ready-to-go cable and a machined drive shaft (so you can easily attach stuff). We drove it with an Adafruit motor shield for Arduino and it hummed along nicely at 50 RPM. To connect to our shield, put the wires in this order: Red, Yellow, skip ground, Green, Brown (or Gray)","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":4978701828,"sku":"324","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/9150\/products\/x324-03.jpg.pagespeed.ic.V85B9JsZqw.jpg?v=1441744226"},{"product_id":"continuous-rotation-servo-feetech-fs5103r","title":"Continuous Rotation Servo - FeeTech FS5103R","description":"DESCRIPTION\u003cbr\u003e\u003cbr\u003eThis servo rotates fully forward or backwards instead of moving to a position. You can use any servo code, hardware or library to control these servos. Good for making simple moving robots. Comes with four different horns, as shown.\u003cbr\u003e\u003cbr\u003eTo control with an Arduino, we suggest connecting the control wire to pin 9 or 10 and using the Servo library included with the Arduino IDE (see here for an example sketch). 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This board ship default to 5V, but you can cut the default trace and add a solder jumper if you need to switch to 3.3V.","brand":"SparkFun","offers":[{"title":"Default Title","offer_id":4984444356,"sku":"DEV-09716","price":16.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/9150\/products\/09716-01.jpg?v=1441756427"},{"product_id":"sparkfun-ftdi-basic-breakout-3-3v","title":"SparkFun FTDI Basic Breakout - 3.3V","description":"Description: This is the newest revision of our FTDI Basic. We now use a SMD 6-pin header on the bottom, which makes it smaller and more compact. Functionality has remained the same.\u003cbr\u003e\u003cbr\u003eThis is a basic breakout board for the FTDI FT232RL USB to serial IC. The pinout of this board matches the FTDI cable to work with official Arduino and cloned 3.3V Arduino boards. It can also be used for general serial applications. The major difference with this board is that it brings out the DTR pin as opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino target to auto-reset when a new Sketch is downloaded. This is a really nice feature to have and allows a sketch to be downloaded without having to hit the reset button. This board will auto reset any Arduino board that has the reset pin brought out to a 6-pin connector.\u003cbr\u003e\u003cbr\u003eThe pins labeled BLK and GRN correspond to the colored wires on the FTDI cable. The black wire on the FTDI cable is GND, green is DTR. Use these BLK and GRN pins to align the FTDI basic board with your Arduino target.\u003cbr\u003e\u003cbr\u003eThere are pros and cons to the FTDI Cable vs the FTDI Basic. This board has TX and RX LEDs that allow you to actually see serial traffic on the LEDs to verify if the board is working, but this board requires a Mini-B cable. The FTDI Cable is well protected against the elements, but is large and cannot be embedded into a project as easily. The FTDI Basic uses DTR to cause a hardware reset where the FTDI cable uses the RTS signal.\u003cbr\u003e\u003cbr\u003eThis board was designed to decrease the cost of Arduino development and increase ease of use (the auto-reset feature rocks!). Our Arduino Pro and LilyPad boards use this type of connector.","brand":"SparkFun","offers":[{"title":"Default Title","offer_id":4984497284,"sku":"DEV-09873","price":17.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/9150\/products\/09873-01a.jpg?v=1441756526"}],"url":"https:\/\/store.jacobshall.org\/collections\/featured-items\/form3.oembed","provider":"Jacobs Hall Material Store","version":"1.0","type":"link"}