Design your own controller for a solder reflow oven projects. The 0xpit reflowovencontroller on github is very suitable because it also uses a tft display. The main culprit in our case was the overhead heating elements in our industrial reflow oven. But after purchasing i saw eevblogs video about smd reflow and saw the same oven from a betalayout kit.
The temperature profile is read from a simple text file on an sd card. The reflowduino is a fully opensource arduinocompatible development board that can painlessly transform any cheap toaster oven into a pcb reflow oven. Combination forced air convectionconduction heating system for consistent process control. Having a reflow oven opens up a world of possibilities. Brief this is an example firmware for our arduino compatible reflow oven controller. Some cheaper reflow ovens place infrared heating elements directly above the boards so dark components absorb more of the heat and end up cooking. Xtoaster is a controller board designed to convert any common toaster oven into an smt reflow oven. Even if the boards still work, the mtbf mean time before failure will be compromised. Open vapors open source toaster reflow oven bald engineer. This results in all your components being soldered for you in one run. This entry was posted in arduino, arduino reflow oven and tagged arduino, diy. Since our toaster oven has elements on both top and bottom the top elements heats up much faster, a toaster oven would have the same achilles heal, melting the softer components on the top side of the pcb.
Its not well liked amongst those that actually use their kitchen appliances for cooking. I decided to put together a toaster oven and wanted something that could handle large boards and possibly do small production runs. Most of us simply cant afford an industrial reflow oven and this pain was also felt by the folks over at rocket scream electronics. This eliminates the usb to serial chip and helps to avoid the autoreset issue presented into the uno design. The reflowduino is a completely opensource, arduinocompatible wireless reflow oven controller packed with features find this and other hardware projects on hackster. Opensource controleo2 is fully compatible with the arduino programming environment, and runs arduino leonardo sketches. In addition, the rpi provides process deficiency information in order to help users correct their defect issues quickly. This is an example firmware for our arduino compatible reflow oven controller. The sample arduino program provided by rocket scream uses a few arduino libraries. All we aim to create is an embedded system that takes in temperatures and actuates a relay that controls the heating elements effectively controlling the temperature.
Arduino based via serial port to a pc or notebook running windows 7. This small reflow oven provides a versatile heating system for leadfree preheating, curing, reflow, rework, and thermal cycling applications especially in prototype or batch applications. Ive been using my toastrreflow oven for many months now and i love it. You only need an extra lowcost 5 max6675 thermocouple board. This shows the build for a simple arduinobased reflow oven controller. Reflow wizard intelligent software makes it easy to get your oven up and running. First of all you will need to download the two libraries that i have not written myself. To simplify the reading of the thermocouple i have used a library for the thermocouple max6675 from adafruit. The controller board is based on the arduino leonardos atmega32u4. By the end youll be so pumped to design and implement your own projects.
Surface mount soldering is peformed in a temperature controlled oven so that the components solder themselves to the circuit board. Today, we make a surface mount soldering or reflow oven using a regular countertop toaster oven and an arduino. The current firmware is borrowing heavily from the rocket scream arduino reflow shield. Profile planner reflow profiling software from electronic controls design inc. Reflow oven profile plotter utility is a freeware application to graph temperature vs time data sent typically from a homemade reflow oven controller eg. After some online research, ive decided to build a reflow toaster oven using an arduinobased controller. Change the board type to arduino zero native usb port. So armed with an idea and some help from the adafruit reflowduino sample code, the reflow oven controller shield was born.
The graph generated has two vertical axis for temperature realtime oven temp and setpoint temperature in degrees c. The ecreflowpilot software allows the user to define and store an unlimited number of temperature and time profiles and to monitor the exact process for each board. This makes changing the temperature profile very easy, without any new code to upload. Software programs for smt placement and aoi inspection machines from cad or gerber. But it is optional feature, either ssr or triac already made isolated. I did build a controller myself some years ago, but i only use it to monitor the temperature, ot does no profiling itself. A reflow oven is used in the production of electronics to change solder paste from a paste form to a liquid form and lastly to a solid form. A quick search online tells you to open up your wallet and grab 500 for a decent small oven unless you go half that price and find one in china paying way too much on shipping and tax. The kic rpi helps manage reflow ovens to consistently maximize the desired results. This converts a basic toaster oven into a temperature controlled reflow oven for making surface mount circuits. What i found was the rocket scream reflow oven controller shield, which is arduino compatible and thus a perfect choice for me. All the eaglecad files and the arduino firmware code are available at this. It sports a versatile atmega32u4 microprocessor with micro usb programming interface, an integrated max31855 ktype thermocouple interface with noise filtering.
Im thinking of using it for smaller jobs, not complete pcb reflows. Paladin enabling technologies reflow master shield. When updating, the user settings and reflow profiles are retained. Having an arduino based reflow oven controller with a graphic lcd opens up. The reflowduino project is an entire doityourself diy reflow ecosystem consisting of opensource hardware specifically built to make it easy to control reflow appliances and apply pid temperature control while maintaining full flexibility in programming and usage while offering a. Reflow oven controller board powered by 12 volts adapter reflow oven controller board powerwd by pcs usb reflow oven controller demo oven prototype. Doing a web search, you will find many options for toaster oven reflow controllers.
I havent had time for the software yet, but there are several open source programs available. The reflow master shield from paladin enabling technologies is an arduino shield that turns your normal toaster oven into a reflow oven. It is fullydocumented on github with example reflow oven pid control code. This is a video showing the general operation of reflowduino, a fully opensource, arduinocompatible reflow oven controller. The secret to miniaturization is surface mount soldering.
The reflowduino is a completely opensource, allinone arduinocompatible reflow controller board that can easily transform a toaster oven into a pcb reflow oven. A reflow oven is one of the most useful tools you will ever have, and if you havent built one yet, now is as good a time as any. The reflow curve used in this firmware is meant for leadfree profile its even easier for leaded process. There is also a picture of the hardware i used which was purchased at home depot. Im still working on documenting the actual toaster oven tutorial but should have that done soon. I prefer leadfree, lowtemperature solder paste, but feel free to use whatever suits you. Good, that was a relief, now im assured it works reliably. Reflowduino is an opensource, arduinocompatible board based on the atmega32u4 microcontroller specifically designed for the purpose of wirelessly controlling diy reflow ovens or anything else that might need temperature control with a relay interface. You can use either a mac, linux or windows pc to do the update. It does, however hit all the major points i was looking for in a reflow soldering device it has top and bottom heating elements with a combined output of 1500w, and it has a convection fan. The reflowduino project is an entire doityourself diy reflow ecosystem consisting of opensource hardware specifically built to make it easy to control reflow appliances and apply pid temperature control while maintaining full flexibility in programming and usage while offering a bunch of features. The ecreflowmate reflow oven gives an even temperature across the board under total user control throughout the soldering process. Even the steadiest hands and best eyes only yield meh results with a manual iron on smd boards, and forget about being able to scale up to production. A library and 15 sample programs for controleo2 has been posted to github already.
Reflow master shield arduino solder reflow oven indiegogo. Upon uploading the example codes onto the arduino uno, we hook everything up together with a type k thermocouple stuffed inside the oven. In this penultimate installment to the reflow oven project, we will wrap up by quickly going through some basics of the final hardware assembly and the software. Here is even more info from adafruit about thermocouples. It sports an atmega32u4 microcontroller, thermocouple interface, lipo battery charging, and bluetooth low energy ble capabilities for interfacing with a custom mobile app. Reflowduino ultimate bluetooth reflow controller from.
Design your own controller for a solder reflow oven november 17, 2015 by patrick lloyd this tutorial continues the project by showing you how to set up the lowlevel hardware to measure temperature, read the zerocross detector, drive the triac, and print to the serial terminal using a usart. You can view the full documentation on my github page here. Toastrreflow controller from geppetto electronics on tindie. Reflow toaster oven using an arduino pic microcontroller. Can i use the same setup with my hotplate laboratory quality or do i have to introduce other hardware to the equation. Sayers toastrreflow controller kit paired with the toastrreflow power board kit is a great way to get into the wonderful world of surface mount technology smt.
Offered by me product is a device that is placed on a rake arduino uno and i have proposed calibration software and a slightly your discretion can make an oven for smd components. They range from oneoff designs to diy boards to full kits. The shield is based off the familiar max6675 thermocouple amplifier and the pid library written by brett beauregard. When you are into electronics and fabricating your own pcbs you want to have a reflow oven in your lab. A hot air gun is likely to exceed this temperature. Ive been working on reflowduino, a fully opensource arduinocompatible diy reflow oven controller board based on the atmega32u4 and with bluetooth and lipo battery input and charging. Another important concern is the power for the arduino and the. Turn your toaster oven into your own solder reflow factory shop using the ref check out reflow master shield arduino solder reflow oven on indiegogo.
Reflow master shield arduino solder reflow oven use. Toaster oven is cheap and provides better, more even heating than a hot skillet. Reflow oven controller renewable energy innovation. I know toaster oven reflowing has been blogged about everywhere, but i do want to give my version some bells and whistles to provide more convenience. The software uses pid control of the heater and fan output for. A reflow oven is used in the production of electronics to change solder paste from a paste form to a. Reflow oven controller for soldering of smd components based on arduino. What i found to be very helpful was buying a getting started with arduino kit and working through every single example. All of those impossible to solder surface mount devices are now easier than ever.
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