![]() ![]() Connect SWD connector (J8 on PCB) to your programmer. Power up your BESC by connecting it to lab power supply or battery and short ignition jumper (J15 on PCB). You also need to download ST-LINK Utility. To flash the firmware for the first time you’ll need to get ST-LINK programmer or a STM32 Nucleo board with integrated ST-LINK. Source code can be found on my Github repository. Most suppliers have automated BOM (like Mouser’s BOM TOOL) processing so ordering should be easy.Ĭlick on icon below to download latest compiled firmware for BESC-G2. Use the BOM file to order the components. Other good suppliers are also Farnell and for folks outside of EU also Digikey and Arrow. Most if not all components are available on Mouser. Since enormous amount of work went into making this open source BLDC controller consider donating. Click on icon to download latest (V1.1) gerber files. Using a “framework” stencil is easier since it is already fixed in a frame. ![]() Upload gerbers to your favourite stencil manufacturer and let them put both sides (top and bottom paste layers) on a single stencil. If you’re going to use reflow process for soldering don’t forget to order a stencil too. you can leave other parameters to their default.surface finish immersion gold (HASL is okay too if you’re on budget),.soldermask and silk color as desired (black looks cool and green is standard),.Find a “Instant PCB quote” button and input next parameters. Start by uploading gerber files to your favourite. There are many of PCB manufaturers to choose from with some Chinese including Allpcb, PCBway and Bestpcb. High current handling capacity of traces is enhanced with copper bus bars (solid copper wire) and solder. is sufficient on internal and external layers. You have to get them in standard thickness of 1.6mm (2.0mm is even batter). first things first, lets start with ordering PCBs. A reflow oven is useful but not necessarily required. Some basic electronics knowledge is required and intermediate soldering skills. The board is relatively easy to solder with smallest components being 0603 and only one leadless package. A 12V power supply is also embedded to power LED light, phone chargers or any other equipment. Connections are also optimised which makes connecting external equipment like throttles or bluetooth modules as easy as ever. Unlike first generation BESC-G2 is highly optimised for cost/performance ratio. Pair it with a powerful motor and battery supplying enough juice and it is perfect for your next crazy DIY project. It was designed to be used in lightweight vehicles such as ebikes, scooters and mopeds. ![]()
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