Release of Mrk 2.0 TP-Downhole

Release of the TP-Downhole v2.0

The TP-Downhole v2.0 is a combination of the TP-Downhole v0.1 and the TP-Downhole Longbow v1.0

Revisions from predecessors:

• Reverse polarity protection
• Voltage reference for thermistor circuit
• MS5803 address select via jumper

Errata:

None

Release of Mrk 1.0 TP-Downhole Longbow

Release of the v1.0 TP-Downhole Longbow

Revisions from v0.1:

• Changed to all digital
• Changed cable attachment to be SMD, added cable notch
• Reduced size
• Added ADC for thermistor measurement
• Added Longbow backing for RS-485 transmission
• Added on board voltage regulation

Errata:

• Resistor R4 is unnecessary leftover
  Workaround: Do not populate R4

Version 0.1

Thin-profile pressure and temperature sensor for down-hole applications; also works for stream gauging and atmospheric pressure measurements.