We also offer Overnight shipping options to most areas and a flat-rate fee of $12.99 for FedEx 2-Day Air (recommended). This shipping method should take approximently 5 - 7 days. We use USPS, UPS & FedEx and we will use the carrier of our choice, unless specified by the customer. We do our best to get your order to you within this time frame, however, once or package is picked up by the shipping carrier it is completely out of our control.įor orders $100 or less, we offer a flat-rate ground shipping fee of $5.99. states are eligible for free 1-3 delivery. Domestic ShippingĪll orders over $100 USD in the 50 U.S. For example, if an order is placed on Friday after the 3pm EST cutoff time, the order will ship on the following business day, usually Monday (If not a holiday). Business Daysīusiness days are defined as “Monday-Friday” and do not include weekends and major holidays. Processing TimeĪll domestic orders placed before 3pm (EST) on a business day are usually processed and shipped the same day. Screw one corner of the LiPoly charger into one of the box’s internal PCB standoffs.IMPORTANT NOTE: SINCE COVID-19, ALL SHIPPING CARRIERS NO LONGER GUARANTEE EXPEDITED SHIPPING. Carefully tuck everything inside the box. Assemble the 5-volt DC-to-DC step up PCB, polymer lithium ion battery, LiPoly charger, SPST switch, and hookup wiring per the SparkFun Electronics’ product datasheets.ĥ. These ventilation holes also enable you to “read” the LiPoly charger’s status indicator LED while recharging the battery.Ĥ. Finally, drill ventilation holes in the box lid. Drill two holes in the side of the box for enabling access for the external power wires (i.e., + & GND). Drill a 3/8-inch hole for the switch and install the switch. Remove the charger and cut a hole in the side of the box at this marked location.ģ. Temporarily install the LiPoly charger inside the project box. Remove the 5-volt barrel power connector from the LiPoly charger.Ģ. USB cable (SparkFun Electronics # $3.95)ġ.Gray ABS project box ( All Electronics #1551-KGY $2.10).SPST pushbutton ( All Electronics #PB-21 $1.35).LiPoly charger (SparkFun Electronics #PRT-00726 $16.95).100mAh polymer lithium ion battery (SparkFun Electronics #PRT-00731 $6.95).5-volt DC-to-DC step up PCB (SparkFun Electronics #PRT-08290 $9.95).Cost: $47.63 (excluding tax and shipping charges).Note: In the coming weeks, I’ll build a project that converts a 12-volt AVR Development Board into a 5-volt “candy bar” computer using this power supply. Add a pushbutton on-off switch and a USB rechargeable interface and you have a versatile power supply that can be slipped inside your pocket. The voltage output for this project is 5VDC, and a practical output that can be applied to a wide variety of digital components.Įven better, this power supply has a two-pin plug that can be quickly and easily snapped into a common two-pin header for a reliable and solid power connection. Sure power supply projects aren’t that sexy but they are, generally speaking, the foundation for every electronics project.
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