Reflow

Low-temperature solder paste makes it easier to reflow-solder and re-work surface mount circuit boards. MG Chemicals offers a Bismuth-based paste that works great from larger …

The Open Vapors project has taken some big steps forward recently. The controller’s enclosure is now a custom box, has a front panel, and the LCD’s menu system is almost done. …

The next stage of the reflow oven project is moving to a custom PCB for the controller electronics. Overall the board is based on the ATmega32u4 with a DS3231 RTC. The LCD module …

Accurate RTC Shield with Kapton Stencil For the past couple of weeks I have been working with the DS3231 Maxim. This chip is a I2C based RTC with an integrated temperature …

While testing my Toaster Oven’s maximum temperature I learned a valuable lesson. Soldermask has a pretty limited lifetime when it is exposed to temperatures above 250C. Looks like …