Has anyone hacked a bread machine controller circuit?

I've got an old Breadman (TR333) bread machine and it's still chugging along.  The newer models have more useful programs (like Jam and Pasta) but have horrible flimsy baking pans.  What I'd like to do is reprogram my old solid bread machine to do these new programs.  I've seen the hacks to roast coffee in the bread machines but I don't think they mess with the controller circuit.  I think they just re-wire them to mix constantly and point a heat gun at the beans.

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67spyder8 months ago

I have been thinking about this project for a while, what I've come up with so far:

1: Add a micro controller which will execute a task list (recipe)

2: Tasks would be :Set temp, stir, beep(maybe flash an led), wait, add ingredients (higher end machines have a hopper you can put stuff in)

3: WIFI connected to your home network.

4: Smart phone app (or desktop app) to edit and manage task lists (recipes)

This would allow the flexibility to turn it into a multi-purpose kitchen robot that would cook rice, soups sauces, eggs and whatever ppl come up with. I also see the ability to share task lists with others making this a really open project. Best of all it would still be able to make bread!

LeonardoK11 year ago

This is a really old post, but I am working in something like this with arduino. there are a couple of projects out there with arduino and bread maker

tewharau (author) 7 years ago
Thanks for the quick responses

OK, it looks like I'm going to open it up and see what is there.

I guess I was hoping there was some group of avid bread machine hackers that had somehow given Google the slip....

I'm interested in doing this. I have a Panasonic breadmaker, but I'd like to be able to change the program - I have a passion for sourdough bread!
Anyway, I'm planning on buying another Panasonic on ebay, and looking into hacking it. I write embedded firmware for a living, so who knows, maybe I can come up with something.

Hi there... did you had a way to write a new ROM for your machine?
any advice?.... I'd like to reprogram or replace with ATmega or PIC one of those things...

Sorry, it's still on my incredibly long list of things I'll probably never get round to.


tewharau (author)  jarnoldbrown7 years ago
Sounds great!  I'm curious to know how it turns out....
pcooper24 years ago
I don't have any pointers for this question, except to say that the thought of modifying my Welbilt bread machine has crossed my mind. There are bread machines that can be programmed by the user, but you're talking about a fourfold or higher price increase over the basic machines. If one wants to bake whole wheat, rye or sourdough breads, the standard cycles don't work, because they don't allow enough time for these doughs to rise. I know, because I've tried it.

I'd look into a way of installing a connector on the side or the back of the housing to run a cable to an external controller, perhaps a personal computer or single-board microcontroller, such as an Arduino. Another approach would be a replacement controller that can accept a USB thumb drive or some sort of Flash memory card to transfer ASCII program scripts from a PC, where editing and saving such scripts would be easier. One could even have a collection of cheap memory cards or thumb drives on a keyring, each with a script for a different bread recipe.
sanco6 years ago
This one looks promising
teske7 years ago
i was searching the internet if it was possible to program my bread machine.
     -the machine can only make breads and jams
   -what is necessary to bake cakes?

anyway have a look at:
with some more info this might lead to a programmable bread machine

Got to be do-able. What can be in a bread machine ? Heater controller and sensor, mixer motor speed and direction....what else ? 

Sounds like a job for an Arduino to me.

Mines got an led readout, electronic timer, electronic control for the different types of bread etc.  Lots of those little black things that look like bugs with wire legs.  My b. maker is not even a very expensive machine either.  I guess you could rip out all of that stuff and just start over on all the controls.
Hi tewharau,

a few weeks ago we purchased two V cheap breadmakers on offer at argos £15 each just for fun.
Something she has wanted for a while, anyway bread is coming out pretty poor and a considerable amount of research into ingredients has been done and plenty of experiments, however it is now my turn to start "playing"...............

I have looked at all the most expensive models and have noticed that the paddles(kneading hook) and the baking case are all very similar in fact they appear to me manufactured  by the same source. The baking case is mounted through the base on a single stiff spindle to the paddle, leaving a maximum air gap 50mm+ all around the baking case. in this space is mounted a single  rectangular heating element, the effect of this is to attempt to maximise the heat by convection around the baking case. The element again appears to be the same in all breadmakers  400w . So having established that the design is the same using the same or similar components across ALL bredmakers available in the UK, why does my £15 model perform badly against the models costing £150........................theres only one way to find out......

I have decided that i am going disassemble the unit and replace the PIC into a remote box probably with a serial lcd screen and a couple of buttons. I am convinced that it is the lack of PWM powering the element which is causing the yeast rising and baking cycles to perform inadequately. there also may  be no facility to measure ambient temperature essential if I am to calculate the characteristics of the heating element.

So I intend to turn one of the breadmakers into a reflow oven........... and here we have a thread on the same subject

tewharau (author)  Duncan3037 years ago
 I've noticed the same thing.  They all have a bluish non-stick coating and although they look different from the outside, they are very similar on the inside.  Have you had one apart yet?
Agreed. The inboard controller may not be reconfigurable, so it might be easiest simply to bypass the control circuit with a diy replacement using an arduino or other micro controller, using whatever portions of the control circuit you can re-use, replacing those you can't.