Powering Barometer HobbyBoard off of Temp08 or 05

[Pete]

Mitch,

I want to power my Barometer Hobbyboard off of the Temp05 or 08. Currently all of my devices off both boards are using the terminal strip and power to both of the devices (Temp08 and Temp05) is ~12VDC (I am using the 12 alarm style battery to power them). Can I switch over to a 1amp 15VDC PS instead to power both of these devices? Can I tap into PIN 1 (15VDC) of the RJ-12 making a RJ12 cable to an RJ45 cable PIN7 (15VDC) to go to the Hobbyboard Barometer?

[Midon]

Sounds like you could do this. TEMP08 is not overly sensitive to the input voltage and can accept up to 30Volts wihtout a problem (the rating of the 7805 regulator). Be careful with other devices being powered off of TEMP08 though!

Mitch

[Pete]

Hello Mitch,
Added another external PS for Barometer instead. Now wanting to install the Hobbyboards Temp/Humidity/Solar device. Looking at installing it on either the Temp08, Temp05 and U9097 (X2). What device would you recommend installing it on?

Pete

[Michael McSharry]

I believe the Temp05/08 will handle the Temperature and Humidity, but will not do the current measurements used for solar reporting. If you do want solar indication then the DS9097 is what you will need. Mitch can correct me if this is something that has been added in more recent Temp08 firmware.

[Midon]

Michael is correct. Neither TEMP08 nor TEMP05 support the current readings required for the solar sensor.

Mitch

[Pete]

Thank you Mitch and Michael.

[peterpc]

Michael is correct. Neither TEMP08 nor TEMP05 support the current readings required for the solar sensor.

Mitch

Are you going to support them in the future?

[Midon]

I'm thinking about support the current measurement on the DS2438 which is where the solar sensor provides data. Have already prototyped it and inclusion will depend on how much code space I have left in TEMP08 once I finish the fixes on the 2405/6.

Mitch

[Midon]

"Current" reading is supported on TEMP08 v2.15 and later. The output looks like this:

Voltage #16[3D0000004CC69826]=01.91V 05.20V 01mV 

The last parameter is the voltage from the register connected to the VSense current inputs of the DS2438. The voltage will represent the current flow across the resistor connected to the VSense terminals or the voltage input to those terminals, in the case of a solar sensor.

Mitch

[Michael McSharry]

Is the voltage line output produced when the ds2438 is configured as a barometer? If not how does a user setup to use all features of the hobby-board humidity/solar device?

[Midon]

The output shown above is available when the DS2438 used is confiugured as a Voltage device.

Mitch

[Michael McSharry]

To be clear for potential users of the Hobby-Boards Baro-Temp-Solar device ...

The device can be configured with Temp08 to be used as a Temp-Baro or a Temp-Voltage, but not a Temp-Baro-Voltage.

In the Temp-Voltage configuration then new firmware feature to provide the Vsense input will not be available to the user unless they provide their own interface software until existing software (e.g. Temp08 or mcsTemperatuer plugin) is updated to support the new Temp08 format.