Ember：一款通过USB-C电源传输供电的热盘控制器
嗨，我是内森，一名渴望成为工程师的爱好者，喜欢摆弄硬件。今年早些时候，我通过各种Hack Club项目开始制作硬件/电子项目。这一切都很完美，但由于高额的海关和进口费用，我的大部分项目都被搁置了，因此我想改变这种状况。
大部分费用实际上是用于组装PCB，经过在网上的探索，我发现了热板这一奇妙的发明，我可以自己制作所有的PCB，成本仅为一半多一点。虽然我本可以在eBay上购买一个，但我决定接受挑战，自己动手制作一个（因为为什么不呢），并尽可能使其具备便携性，于是Ember应运而生。
我开始研究热板的工作原理，并在网上寻找是否有人制作过类似的设备，偶然间我发现了这个代码库（https://github.com/ikajdan/reflow-hot-plate）。这基本上就是我想要制作的东西，但仔细阅读后，我发现虽然它的温度可以达到210°C，但热板的尺寸相对较小。此外，它需要一个外部DC插孔和USB-C接口，以便能够通过笔记本电脑进行控制和监控。
功能/规格：
- USB-C电源传输，最高可达100W（20V），使用TI的TPS25730D
- 配备蓝牙支持的STM32WB55CG微控制器
- 大约120mm x 120mm的灵活加热板，适用于大型PCB回流（JLCFH）
- 采用MAX6675热电偶和PT1000 RTD的双温度传感
- 配备旋转编码器的OLED显示屏，便于控制和预设管理
- 支持NFC（因为为什么不呢，哈哈）
- 精确PWM加热板控制的门驱动器
- 具备电流和板温监控以确保安全
- 32MB闪存用于图形和数据存储
- 便携设计，采用定制的亚克力/尼龙外壳
如果你想查看我制作过程的完整日志以及我所做的所有设计决策，可以在这里查看：https://blueprint.hackclub.com/projects/1701
对于有兴趣自己制作的人，这里是GitHub代码库：https://github.com/notaroomba/ember
感谢Hack Club的Blueprint赞助这个项目！
查看原文
Hi, I’m Nathan, an aspiring engineer who likes to tinker with hardware. Earlier this year, I started making hardware/electronic projects through various Hack Club programs. It was perfect, but most, if not all, of my projects were being withheld due to high customs and import fees, so I wanted to change that.<p>Most of the price was actually assembling the PCB, and looking around the internet, I discovered the wonderful invention of the hotplate, and that I could make all of my PCBs myself for more than half the cost. Now, while I could have bought one on eBay, I decided to take up the challenge of making my own (because why not) and to make it as functionally portable as possible, so Ember was born.<p>I started reading how hotplates work and looked around the internet to see if anyone had made one, and I stumbled upon this repository (https://github.com/ikajdan/reflow-hot-plate). It was basically what I wanted to make, but reading through, I found that although it went up to 210 °C, the hotplate size was rather small. Also, it needed an external DC jack along with USB-C to be able to control/monitor it from a laptop.<p>Features/Specs:
- USB-C Power Delivery up to 100W (20V) using TI's TPS25730D
- STM32WB55CG microcontroller with Bluetooth support
- Large(ish) 120mm x 120mm flexible heatbed for big PCB reflow (JLCFH)
- Dual temperature sensing with MAX6675 thermocouple and PT1000 RTD
- OLED display with rotary encoder for easy control and preset management
- NFC support (because why not lol)
- Gate driver for precise PWM heatbed control
- Current and board temperature monitoring for safety
- 32MB Flash memory for graphics and data storage
- Portable design with custom acrylic / nylon case<p>If you want to see the complete journal of how I made it and all of the design decisions I made, you can check it out here: https://blueprint.hackclub.com/projects/1701<p>Here’s the GitHub repo for anyone interested in making their own: https://github.com/notaroomba/ember<p>Thanks to Hack Club’s Blueprint for sponsoring this project!