John Bostwick
TVWBB Wizard
Hold off making ATM*****
Well, I thought I would post, the hopefully final version of the Auxiliary thermocouple board, Version 5. Sometime this weekend it will be tested to make sure the components fit correctly. The circuit works great, so the only unknown at the moment is to see if the locking 6 pin header Ralph and I choose to use, fits correctly and to make sure of any other unknowns.
Its been fun designing this little board with help from Ralph(Rotodamper). I learned a lot and I learned how much pain Bryan goes through making a much larger Heatermeter board. Eagle can be such a pain to work with sometimes
Parts needed to complete
Aux. version 5
Newark TC connector
Deleted Osh link until locking servo/blower is corrected
When I have a chance, hopefully this weekend, I will write a how-to for adjusting the Ref. of the thermocouple amp.
I have also some other helpful boards, one of which I will be trying in a couple weeks and the other is a small single resistor board to be used to make better connection to the Heatermeter boards TC's 100k resistor and connecting it to a switch. The other board(s) that I will be testing in about 2 weeks, will be a modified Heatermeter board that will connect the Cat5 connectors unused wires (1,2,8) Wire 7 will still need a wire to connect it to the 100k resistor board, but it will be the only wire needed to be soldered, not counting other wires need for adding a switch to switch between the onboard TC and Aux. board TC. Wire 1 will be connected to the probe jack 1 and Wire 2 to probe 2 and wire 8 will be connected to ground.
100k Jumper board(3 boards shipped from OSH .80cents)
Well, I thought I would post, the hopefully final version of the Auxiliary thermocouple board, Version 5. Sometime this weekend it will be tested to make sure the components fit correctly. The circuit works great, so the only unknown at the moment is to see if the locking 6 pin header Ralph and I choose to use, fits correctly and to make sure of any other unknowns.
Its been fun designing this little board with help from Ralph(Rotodamper). I learned a lot and I learned how much pain Bryan goes through making a much larger Heatermeter board. Eagle can be such a pain to work with sometimes
Parts needed to complete
Aux. version 5
Newark TC connector
Deleted Osh link until locking servo/blower is corrected
When I have a chance, hopefully this weekend, I will write a how-to for adjusting the Ref. of the thermocouple amp.
I have also some other helpful boards, one of which I will be trying in a couple weeks and the other is a small single resistor board to be used to make better connection to the Heatermeter boards TC's 100k resistor and connecting it to a switch. The other board(s) that I will be testing in about 2 weeks, will be a modified Heatermeter board that will connect the Cat5 connectors unused wires (1,2,8) Wire 7 will still need a wire to connect it to the 100k resistor board, but it will be the only wire needed to be soldered, not counting other wires need for adding a switch to switch between the onboard TC and Aux. board TC. Wire 1 will be connected to the probe jack 1 and Wire 2 to probe 2 and wire 8 will be connected to ground.
100k Jumper board(3 boards shipped from OSH .80cents)
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. For the ones that the holes were 2 small were the pads an ok size like could one drill them out or just way to small and if drilled all the pad would be gone as well?