wulfman

Well  looking at the signals with the scope they both look fine. I Removed the cap and it works fine now  go figure.
Ok. I guess i am losing my mind. I looked at the hardware ref and Doh !  that cap is supposed to be connected to the
rst line not the test line. It seems that i am going blind. And its supposed to be a .01uf not a .1uf
 

All boards sent out this morning
 
have fun

All boards sent out this morning
 
have fun

ok boards got here today i will be sending them out tomorrow i will let all of you that wanted one or 2 what the cost is tomorrow via email

Boards have been ordered today as promised   Amount:$60.90 USD for 10 boards plus  $13.34 USD Shipping and handling
SO 7.45 per board plus shipping. i have kitted up all the resistors and caps and the one led along with a 20 pin machine socket for the 430 ( for free )
also in the package i will include a BOM and a 11x17 schematic page.
spirils           -1 jpnorair        -2 vicvelcro      -2 JonnyBoats -2 geekdoc      -2   please you guys send me your mailing address so i can address the envelopes and weigh them to see how much postage is I suspect they will be made tomorrow and if all goes well shipped saturday or monday. I payed for airmail shipping so maybe 10 days from when they get mailed from china till i get them in the envelopes and send them all to you. I will let you know how much postage is so you can send money   thanks for your patience.

Boards have been ordered today as promised   Amount:$60.90 USD for 10 boards plus  $13.34 USD Shipping and handling
SO 7.45 per board plus shipping. i have kitted up all the resistors and caps and the one led along with a 20 pin machine socket for the 430 ( for free )
also in the package i will include a BOM and a 11x17 schematic page.
spirils           -1 jpnorair        -2 vicvelcro      -2 JonnyBoats -2 geekdoc      -2   please you guys send me your mailing address so i can address the envelopes and weigh them to see how much postage is I suspect they will be made tomorrow and if all goes well shipped saturday or monday. I payed for airmail shipping so maybe 10 days from when they get mailed from china till i get them in the envelopes and send them all to you. I will let you know how much postage is so you can send money   thanks for your patience.

Boards have been ordered today as promised   Amount:$60.90 USD for 10 boards plus  $13.34 USD Shipping and handling
SO 7.45 per board plus shipping. i have kitted up all the resistors and caps and the one led along with a 20 pin machine socket for the 430 ( for free )
also in the package i will include a BOM and a 11x17 schematic page.
spirils           -1 jpnorair        -2 vicvelcro      -2 JonnyBoats -2 geekdoc      -2   please you guys send me your mailing address so i can address the envelopes and weigh them to see how much postage is I suspect they will be made tomorrow and if all goes well shipped saturday or monday. I payed for airmail shipping so maybe 10 days from when they get mailed from china till i get them in the envelopes and send them all to you. I will let you know how much postage is so you can send money   thanks for your patience.

Boards have been ordered today as promised   Amount:$60.90 USD for 10 boards plus  $13.34 USD Shipping and handling
SO 7.45 per board plus shipping. i have kitted up all the resistors and caps and the one led along with a 20 pin machine socket for the 430 ( for free )
also in the package i will include a BOM and a 11x17 schematic page.
spirils           -1 jpnorair        -2 vicvelcro      -2 JonnyBoats -2 geekdoc      -2   please you guys send me your mailing address so i can address the envelopes and weigh them to see how much postage is I suspect they will be made tomorrow and if all goes well shipped saturday or monday. I payed for airmail shipping so maybe 10 days from when they get mailed from china till i get them in the envelopes and send them all to you. I will let you know how much postage is so you can send money   thanks for your patience.

yeah thats it  oven is for any oven that has top and bottom elements and a convection fan i grabbed mine at walmart for 50-60 bux
 
single element ovens will not work well  as temp control will not be good enough and it also cannot heat up fast enough for the reflow profiles especially for lead free solders

The one with the LCD on it is the one I'm testing with, the other one is the fully populated board. They're both identical I think, except the one I'm testing with have no TRIACs, and the one I'm testing only has 1 max31855 on it.
 
As a matter of interest. max31855 are ~$8 each, so you may want to consider only using one. At least initially. We're going to test with two thermocouples, but in the end it is my gut feeling that it will only add cost, confusion related to the data output, and complexity. Plus there is only really room for one thermocouple output on the screen as you may be able to see, unless you want every_single_line on the LCD full up, and less readable.
 
Also at some point, I want to give PWM control of the TRIACs a good test someday, but in reality it is not a priority. I have seen a video on youtube where one such creator of a different reflow controller did really well in thermal control using PWM. His output over shot the peak target temperature only by 1-2C, which is really exceptional. Anyway, his code used PWM to do this ( PID controller ).
 
One 

 
two
 

Well the first pcb was a bummer with a few errors but its been revised and i will be ordering up a new batch of boards with corrected placements. If anybody is interested in a board or 2 please contact me @  wulfman@wulfman.com before next thursday and i will make the order to include however many boards need to be ordered.
 
Price on the boards are about 6 bux plus whatever shipping from china is divided by the number of boards i have made. I will ship all the resistors and caps with the board for free. Connectors for the board can be purchased on EBAY as well as the nokia displays. there is a socket for a 20 pin msp430g2553 as well as a launchpad if you want to dream up some other code. Yrkoon someday will have his code finished. I will provide a XLS BOM and schematics to anybody who gets boards
SCHEMATIC1 _ PAGE1.pdf

Well the first pcb was a bummer with a few errors but its been revised and i will be ordering up a new batch of boards with corrected placements. If anybody is interested in a board or 2 please contact me @  wulfman@wulfman.com before next thursday and i will make the order to include however many boards need to be ordered.
 
Price on the boards are about 6 bux plus whatever shipping from china is divided by the number of boards i have made. I will ship all the resistors and caps with the board for free. Connectors for the board can be purchased on EBAY as well as the nokia displays. there is a socket for a 20 pin msp430g2553 as well as a launchpad if you want to dream up some other code. Yrkoon someday will have his code finished. I will provide a XLS BOM and schematics to anybody who gets boards
SCHEMATIC1 _ PAGE1.pdf

OK sorry for no updates. Due to a few errors and one big oops i will scrap this batch of boards. This is the first board i have made with Allegro all my past boards were made with orcad layout. There was a learning curve and even though it is easier there was an error in footprint pins vs schematic pins in the voltage regulator ( 2 and 3 swapped ) I swapped 2 pins ( MOSI AND MISO ) because of me not paying attention to the pictures on https://github.com/energia/Energia/wiki/Hardware. I used the pinout for the MSP430G2452 ( WTF? why would TI swap the 2 pins anyway ) I also noticed that my power connector needed to face south not west so i can put the case back on the oven. Those errors were not that large and i have a proto running fine but the real deal breaker for me was putting the display upside down ( AHHHHH ) So here is a copy of the revised schematic for your review. I was asked by Yrkoon to add a 2 pin header for access to the serial port pins on the msp430. I added a 2 pin header so people that don't use a wall wart power supply with a barrel connector to just solder power wires to. I used mostly through hole components because i have so many of them it just makes sense. For those who want the new board i will toss in all the through hole resistors and caps for free. if anybody wants the connectors http://www.ebay.com/itm/10-x-2-Pin-5mm-PCB-Universal-Screw-Terminal-Block-Connector-300V-16A-GS007S-/350726604695?pt=LH_DefaultDomain_0&hash=item51a8ef4797 i can toss them in at my cost or you can order them on ebay
I ordered the Nokia displays on eBay as well DO NOT GET THE BLUE BACK LIGHT ONES they have an incorrect pin out. Please let me know about anything you want added to the design for you mad experimenters out there before i send off the boards for manufacture again. Thank goodness they are cheap @ 5 bux each plus shipping. I will order 10 boards unless i get more people wanting more i will wait a few days for all of you to chime in then i will send out the order. Please email me with your quantity required @ wulfman@wulfman.com     Good things are worth waiting for.
SCHEMATIC1 _ PAGE1.pdf

That's sad. Hope the next one works out.
 
 
 Could you please start a GB thread here for this with pricing details instead of custom orders. It will help me monitor it and also keep it separate from the main dev thread here. 

yyrkoon told me that he has the boards now. unfortunately i had to go to nevada for a funeral then i need to go to tempe AZ so it looks like another week till i can get to checking out the boards and getting things together. ahhh the best laid plans of mice and men.
 

Boards should have shipped from HK today. Whatever you like Richard, we'll probably assemble those that dont sell on here, and then sell them on ebay.

If available I would like to get two (2) boards or one (1) if 2 are not available.
 
This looks like a great project and I already have an old toaster oven ready for this.

Well with the chinese taking some 2 week holiday i had to work extra hard and i finished up the other boards i was working on and made the order. I hope they produce quality boards. I will need to test the design and yyrkoon
 needs to get busy and program up some more code to test it but i think it will work out ok.

BTA26-800BWRG triac = $3.20 each                                     this will easily handle the heater current
MOC3063S-TA1 zero crossing triac driver  - 47 cents each   3.3 volt turn on makes a smooth turn on turn off for the triac
triac needs a heatsink which is a piece of aluminum that all triacs share maybe a buck for it
 
 
SP2-L2-CD3V   = $32.00     15 amp relay 3 volt coil  requires a transistor to drive the coil from a msp430
requires no heatsink uses more board area
 
AQA331VL = 25 bucks  15 amp ssr triac output needs to be mounted to something for heatsinking  needs a transistor
to turn it on from a msp430 very large and bulky
 
 
For the oven you need 3 of the relays, triacs-drivers or SSR  to control the functions.
True the fan driver can be less current and use a cheaper relay or ssr.
 
But for over all cost savings the triac beats the other solution hands down
 
 
Also i am using a cheapo chinese wall wart for the 5 volts i remove the small board from the wall wart and glue it to the board
with silicon. you cant even buy a flyback transformer for the cost of the whole wallwart from china
 
I have seen cheaper relays and ssr's on ebay but they are not consistent in availability.
You cannot design for manufacturing using ebay.
All my parts can be purchased at mouser.com for ease of purchasing.
 
Keep up the comments.
 
Wulfman.
 

BTA26-800BWRG triac = $3.20 each                                     this will easily handle the heater current
MOC3063S-TA1 zero crossing triac driver  - 47 cents each   3.3 volt turn on makes a smooth turn on turn off for the triac
triac needs a heatsink which is a piece of aluminum that all triacs share maybe a buck for it
 
 
SP2-L2-CD3V   = $32.00     15 amp relay 3 volt coil  requires a transistor to drive the coil from a msp430
requires no heatsink uses more board area
 
AQA331VL = 25 bucks  15 amp ssr triac output needs to be mounted to something for heatsinking  needs a transistor
to turn it on from a msp430 very large and bulky
 
 
For the oven you need 3 of the relays, triacs-drivers or SSR  to control the functions.
True the fan driver can be less current and use a cheaper relay or ssr.
 
But for over all cost savings the triac beats the other solution hands down
 
 
Also i am using a cheapo chinese wall wart for the 5 volts i remove the small board from the wall wart and glue it to the board
with silicon. you cant even buy a flyback transformer for the cost of the whole wallwart from china
 
I have seen cheaper relays and ssr's on ebay but they are not consistent in availability.
You cannot design for manufacturing using ebay.
All my parts can be purchased at mouser.com for ease of purchasing.
 
Keep up the comments.
 
Wulfman.
 

Be careful about the BLUE backlight versions on ebay they will not work with this board. pinout as follows
1- rst
2-ce
3-dc
4-din
5-clk
6-vcc
7-light
8-gnd