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X-toaster is a Reflow Oven Controller specifically designed to convert any normal toaster oven into a reflow oven. It can drive two external SSR to enable control of the heaters and, if present, the oven fan.
The heart of the system is an Atmel ATXmega128 which can be reprogrammed by the user through the onboard PDI connector. To amplify the signal coming from the thermocouple we selected the MAX31855 which supports any K-type non-grounded probe.
There are three profiles stored in EEprom which can be modified and re-programmed whit your own, to adapt the system to various PCBs, solder pastes and ovens.
Temperature control is provided by a custom PID algorithm with some unique predictive feature to smooth any fast changing ramps in the profile and an exclusive overshoot compensation.
GUI has been designed to work on a 3.2” color touch screen. There is no need to connect an external PC for programming: everything is controllable directly from the touch screen.
Safety features include a programmable timeout, two sensors to check for onboard and external over temperature, oven maximum temperature control, and hardware malfunctioning control.
I designed X-toaster because I needed a Reflow Oven Controller for my company, for small batches productions and for prototyping pourposes, when dealing with QFN and BGA.
I knew that out there there was a billion of other DIY toaster oven reflow controller ready to be used, but none of them seemed to fit my specific needs:
I could not find a controller with all these features, so I made my own.
Every parameter and all the profiles are programmable directly from the user interface with no need to mess with PC software, drivers, USB or ethernet cables. Here are a couple of screenshot:
Reflow Profile Programming
Reflow in progress
You can customize your KIT by adding the items shown in the options. The base board includes:
X-toaster comes with a limited warranty of 12 months from the moment the board is shipped to the customer.
All our boards and kits are returnable and refundable within 14 days from the shipping date (30 days for international orders). To be elegibile for a return your item must be unused, unmounted, never powered in its original unopened package.
*Please note that while the board itself works with low voltages, mains power voltages may be involved when mounting and using it. High voltages can be lethal and in the worst case may lead to electrocution and possibly death. It is assumed that you are a competent engineer and you know what you are doing. If not, please do not buy and/or use this product or search for a trained technician in your area that can help you. *
Paul | Nov. 30, 2015
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I've been working in the electronics and IT business for 20 years or so, used to work for other companies and now I have my own.
My main interests are embedded systems, linux, networking.