John Bostwick
TVWBB Wizard
Updated Rotordamper Aux. TC board v3.4
Edited
The final version of the Rotodamper TC board is available on OSH if you would like to build one. 3 boards $6.50 include shipping
AUX. TC board v3.4
The parts needed to make the board are mouser parts
You can run the board with just the TC amp circuit without using the 3.3v regulator, and OPamp circuit
3.3v circuit3.3v regulator
OPamp circuit1m trimmer
OPamp circuit1m resistor
OPamp circuitOP777
You also need the same components for the Heatermeter TC amp circuit, 2 inline jacks, a Rj45 connector(same as Heatermeter) and 3 more .1 caps smd resistors(same used in Thermocouple circuit)
Also needed is a 5pin header, same as the Heatermeter lcd(you should have a left over piece from the LCD)
The parts that are needed and the board will improve over time, as the Trimmer is a little hard to solder, I moved it to an edge to make a little easier not to melt it. Also, the probe jacks may or may not be slotted as to round. If they are around then you may need to make the ground pin1(first pin on both, next to edge) thinner by clipping off a little on the side, so that it fits in. They can fin in as is, but its very very tight or you can ream out the hole a little, also. Will be looking for a fix. And I will be looking for cheaper components, So, I will just update the links and board as needed to better parts.
Also, this can be used on Rotodampers that have already been made but, you will need to do some custom work on the case to make it fit correctly. I will hopefully have an easy how-to post here soon. Ralph is making a new Rotodamper that will work with the board.
Edited
The final version of the Rotodamper TC board is available on OSH if you would like to build one. 3 boards $6.50 include shipping
AUX. TC board v3.4
The parts needed to make the board are mouser parts
You can run the board with just the TC amp circuit without using the 3.3v regulator, and OPamp circuit
3.3v circuit3.3v regulator
OPamp circuit1m trimmer
OPamp circuit1m resistor
OPamp circuitOP777
You also need the same components for the Heatermeter TC amp circuit, 2 inline jacks, a Rj45 connector(same as Heatermeter) and 3 more .1 caps smd resistors(same used in Thermocouple circuit)
Also needed is a 5pin header, same as the Heatermeter lcd(you should have a left over piece from the LCD)
The parts that are needed and the board will improve over time, as the Trimmer is a little hard to solder, I moved it to an edge to make a little easier not to melt it. Also, the probe jacks may or may not be slotted as to round. If they are around then you may need to make the ground pin1(first pin on both, next to edge) thinner by clipping off a little on the side, so that it fits in. They can fin in as is, but its very very tight or you can ream out the hole a little, also. Will be looking for a fix. And I will be looking for cheaper components, So, I will just update the links and board as needed to better parts.
Also, this can be used on Rotodampers that have already been made but, you will need to do some custom work on the case to make it fit correctly. I will hopefully have an easy how-to post here soon. Ralph is making a new Rotodamper that will work with the board.
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