<Projects></Projects>

Reference Designs

Learn how to use EAGLE from a variety of example projects.

Voltera Pre-Plated Clustered Vias Templates by Voltera

We offer several types of substrate and templates. Incorporating their dimensions and features into your design will improve your V-One experience. We have developed a set of Design Blocks for EAGLE that contains parts for all of the templates and substrates in our store. Using it is easy, just drop in the template as you would any other part and away you go. Working with complex circuits can be challenging when you have drill and fill all your vias. These 2"x3" templates come pre-drilled and plated along with power and ground rails you can route to. Another easy way to start prototyping as soon as possible! Found here: https://store.voltera.io/collections/standard-substrates/products/pre-plated-clustered-vias-template

575 Downloads | 281 Likes | 09.15.2017

Voltera Pre-Plated Distributed Vias Templates by Voltera

We offer several types of substrate and templates. Incorporating their dimensions and features into your design will improve your V-One experience. We have developed a set of Design Blocks for EAGLE that contains parts for all of the templates and substrates in our store. Using it is easy, just drop in the template as you would any other part and away you go. Working with complex circuits can be challenging when you have drill and fill all your vias. These 2"x3" templates come pre-drilled and plated along with power and ground rails you can route to. Another easy way to start prototyping as soon as possible! Found here: https://store.voltera.io/collections/standard-substrates/products/pre-plated-distributed-vias-template

605 Downloads | 270 Likes | 09.15.2017

SparkFun LiPo Charger Basic - Micro-USB by SparkFun Electronics

Autodesk EAGLE Design Block Description: If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun LiPo Charger Basic is stripped down of all features and just does one thing well - charge 3.7V LiPo cells at a rate of 500mA. It is designed to charge single-cell Li-Ion or Li-Polymer batteries. Check the datasheet below to see if it will work with your battery. The board incorporates a charging circuit, status LED, connector for your battery (JST-type used in the batteries we carry), and a micro-USB connector. A small mounting hole allows this charger to be easily embedded into a project. Note: This version uses a micro-USB cable. We also have this charger with a mini-USB connection as well. Dimensions: 29.4x10.8mm

578 Downloads | 252 Likes | 08.08.2017

SparkFun XBee Explorer USB by SparkFun Electronics

Autodesk EAGLE Design Block Description: This is a simple to use, USB to serial base unit for the Digi XBee line. This unit works with all XBee modules including the Series 1 and Series 2.5, standard and Pro version. Plug the unit into the XBee Explorer, attach a mini USB cable, and you will have direct access to the serial and programming pins on the XBee unit. The highlight of this board is an FT231X USB-to-Serial converter. That’s what translates data between your computer and the XBee. There’s also a reset button, and a voltage regulator to supply the XBee with plenty of power. In addition, there are four LEDs that’ll help if you ever need to debug your XBee: RX, TX, RSSI (signal-strength indicator), and power indicator. This board also breaks out each of the XBee’s I/O pins to a pair of breadboard-compatible headers. So if you want to make use of the XBee’s extended functionality, you can solder some header pins into those, or even just solder some wire.

550 Downloads | 286 Likes | 08.08.2017

SparkFun Venus GPS with SMA Connector by SparkFun Electronics

Autodesk EAGLE Design Block Description: This is the latest version of our Venus GPS board; the smallest, most powerful, and most versatile GPS receiver we carry. It’s based on the Venus638FLPx, the successor to the Venus634LPx. The Venus638FLPx outputs standard NMEA-0183 or SkyTraq Binary sentences at a default rate of 9600bps (adjustable to 115200bps), with update rates up to 20Hz! The Venus638FLPx also allows for limited on-chip logging (check out the firmware below), as well as external logging using an SPI flash memory chip (not included). This board includes an SMA connector to attach an external antenna, headers for 3.3V serial data, NAV (lock) indication, Pulse-Per-Second output, and external Flash support. We’ve also provided solder jumpers to easily configure the power consumption, boot memory, and backup supply. This board requires a regulated 3.3V supply to operate; at full power, the board uses up to 90mA, at reduced power it requires up to 60mA. We’ve made it easy to connect an external battery or super capacitor to the board, to support very fast restarts after power is removed. Features: Up to 20Hz update rate -148dBm cold start sensitivity -165dBm tracking sensitivity 29 second cold start TTFF 3.5 second TTFF with AGPS 1 second hot start 2.5m accuracy Multipath detection and suppression Jamming detection and mitigation SBAS (WAAS / EGNOS) support 67mW full power navigation Works directly with active or passive antenna Internal flash for optional 75K point data logging Supports external SPI flash memory data logging Complete receiver in 10mm x 10mm x 1.3mm size Contains LNA, SAW Filter, TCXO, RTC Xtal, LDO Single 2.7-3.3V supply Dimensions: 1.15 x 0.7 inches

552 Downloads | 266 Likes | 08.08.2017

SparkFun OpenLog by SparkFun Electronics

Autodesk EAGLE Design Block Description: The SparkFun OpenLog is an open source data logger that works over a simple serial connection and supports microSD cards up to 64GB. The OpenLog can store or “log” huge amounts of serial data and act as a black box of sorts to store all the serial data that your project generates, for scientific or debugging purposes. The SparkFun OpenLog runs off of an onboard ATmega328, running at 16MHz thanks to the onboard crystal.The OpenLog draws 6mA when recording a 512 byte buffer, but as that process takes a fraction of a second, the average current draw is closer to 5mA. Keep in mind though that if you are recording a constant data stream at 115200bps, you will approach that 6mA limit. All data logged by the OpenLog is stored on the microSD card that involves the features of 64MB to 64GB capacity and FAT16 or FAT32 file type. Features: VCC Input: 3.3V-12V (Recommended 3.3V-5V) Log to low-cost microSD FAT16/32 cards up to 64GB Simple command interface Configurable baud rates (up to 115200bps) Preprogrammed ATmega328 and bootloader Four SPI pogo pins Two LEDs indicate writing status 2mA idle, 6mA at maximum recording rate

618 Downloads | 258 Likes | 08.08.2017

SparkFun nRF52832 Breakout by SparkFun Electronics

Autodesk EAGLE Design Block Description: The nRF52832 is Nordic Semiconductor’s latest multiprotocol radio System on Chip (SoC). It’s half microcontroller, with a list of features including 32 configurable I/O pins, SPI, I2C, UART, PWM, ADC’s, 512kB flash, and 64kB RAM. And it’s half 2.4GHz multiprotocol radio, supporting Bluetooth Low Energy (BLE), ANT, and Nordic’s proprietary 2.4GHz ultra low-power wireless communication – it even features on-chip NFC tag support. SparkFun’s nRF52832 Breakout provides easy access to all of the chip’s features. It breaks out all of the nRF52’s I/O pins, provides a 32.768kHz RTC crystal, a user-programmable button and LED, and a trace antenna to send and receive those 2.4GHz transmissions. Plus, to make the chip as easy-to-flash as possible, the breakout comes pre-programmed with a serial bootloader. Nordic’s nRF52832 is a SoC that combines an ARM Cortex-M4F microprocessor with a 2.4GHz multiprotocol radio. In addition to providing access to all of the chip’s I/O pins, the breakout board includes a handful of external components. The nRF52832 can operate on a power supply between 1.7 and 3.6V. The board also includes a 3.3V regulator with a maximum input of 6V, if you want to power the board with batteries or a regulated wall supply. Features: Bluetooth Low Energy (BLE), ANT and proprietary 2.4GHz radio support 32-bit ARM Cortex-M4F Processor Easy access to all 32 GPIO SPI, I2C, UART, PWM and ADC I/O support User-programmable LED and button 32.768kHz RTC Crystal Pre-programmed serial bootloader

577 Downloads | 251 Likes | 08.08.2017

SparkFun 9DoF IMU Breakout - LSM9DS1 by SparkFun Electronics

Autodesk EAGLE Design Block Description: The LSM9DS1 is a versatile, motion-sensing system-in-a-chip. It houses a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer – nine degrees of freedom (9DOF) in a single IC! The LSM9DS1 is equipped with a digital interface, but even that is flexible: it supports both I2C and SPI, so you’ll be hard-pressed to find a microcontroller it doesn’t work with. This IMU-in-a-chip is so cool we put it on the quarter-sized breakout board you are currently viewing! The LSM9DS1 is one of only a handful of IC’s that can measure three key properties of movement – angular velocity, acceleration, and heading – in a single IC. By measuring these three properties, you can gain a great deal of knowledge about an object’s movement and orientation. The LSM9DS1 measures each of these movement properties in three dimensions. That means it produces nine pieces of data: acceleration in x/y/z, angular rotation in x/y/z, and magnetic force in x/y/z. The LSM9DS1 Breakout has labels indicating the accelerometer and gyroscope axis orientations, which share a right-hand rule relationship with each other. Each sensor in the LSM9DS1 supports a wide spectrum of ranges: the accelerometer’s scale can be set to ± 2, 4, 8, or 16 g, the gyroscope supports ± 245, 500, and 2000 °/s, and the magnetometer has full-scale ranges of ± 4, 8, 12, or 16 gauss. Features: 3 acceleration channels, 3 angular rate channels, 3 magnetic field channels ±2/±4/±8/±16 g linear acceleration full scale ±4/±8/±12/±16 gauss magnetic full scale ±245/±500/±2000 dps angular rate full scale SPI / I2C serial interfaces Operating Voltage: 3.3V

554 Downloads | 274 Likes | 08.08.2017

LilyPad Arduino USB - ATmega32U4 Board by SparkFun Electronics

Autodesk EAGLE Design Blocks Description: The LilyPad Simple just got a whole lot… simpler. We’ve updated the Simple board to create the LilyPad USB by replacing the classic ATMega328 with the new ATMega32U4. Not only does that mean that it’s running a variation of the latest and greatest bootloader, but it also means no more FTDI Basic! The only extra piece of hardware you need to program the LilyPad USB is a micro-USB cable since the new IC has built-in USB support. The LilyPad USB is also officially supported in the Arduino IDE as of version 1.0.2! Just like the LilyPad Simple, this board operates at 3.3V and features a JST socket so you can directly connect a Li-Po battery for power and an on-board power switch so you can turn it off when you’re not feeling particularly blinky. These boards were designed to streamline your next sewable project by keeping things simple and giving you more room to work while eliminating the need to sew a power supply. The LiPo battery is even rechargeable through the board, no more special external LiPo chargers required! LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad was creatively designed to have large connecting pads to allow them to be sewn into clothing. Various input, output, power, and sensor boards are available. They’re even washable! Dimensions: 50mm outer diameter Thin 0.8mm PCB

619 Downloads | 227 Likes | 08.08.2017

SparkFun Load Cell Amplifier - HX711 by SparkFun Electronics

Autodesk EAGLE Design Block Description: The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell, and with some calibration, you’ll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale, process control or simple presence detection. This version of the SparkFun Load Cell Amplifier features a few changes that you specifically asked for! We have separated the analog and digital supply, as well as added a 3.3uH inductor and a 0.1uF filter capacitor for digital supply. The HX711 uses a two-wire interface (Clock and Data) for communication. Any microcontroller’s GPIO pins should work, and numerous libraries have been written, making it easy to read data from the HX711. Load cells use a four-wire Wheatstone bridge configuration to connect to the HX711. These are commonly colored RED, BLK, WHT, GRN and YLW. Each color corresponds to the conventional color coding of load cells: Red (Excitation+ or VCC) Black (Excitation- or GND) White (Amplifier+, Signal+ or Output+) Green (A-, S- or O-) Yellow (Shield) The YLW pin acts as an optional input that is not hooked up to the strain gauge but is utilized to ground and shield against outside EMI (electromagnetic interference). Please keep in mind that some load cells might have slight variations in color coding. Features: Operation Voltage: 2.7V–5V Operation Current: < 1.5mA Selectable 10SPS or 80SPS output data rate Simultaneous 50 and 60Hz supply rejection

900 Downloads | 277 Likes | 08.08.2017