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Copyright Jericho Lab. 2021 

  Explore. Measure. Understand. 

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prefer to use more professional programming tools. A free option that is often recommended is the 
software Atom, combined with the Platformio add-on.

 

Can I control something with the TDL? 

 

Yes, with some supplementary work. It is possible to use the free outputs on the microcontroller to 

send control signals. However, this requires coding and the total memory available on the 
microcontroller is limited. 

- Can I paint the controller enclosure?

  

Yes, it should cause no problem if you paint the outside surface. 

- Can I use any smartphone?  

No. The smartphone needs to have host capability. When you connect a smartphone and a computer, 
the smartphone acts as a slave and the computer as a host. When you connect a smartphone and a TDL 
device, the smartphone acts as a host and the TDL acts as a slave. However, not all smartphones are 
able to behave as a host. 

- What is an ‘OTG cable’ and a ‘host capability’? 
- Can I use a solar panel with the smartphone?  

Yes, however it must provide a 5V regulated voltage. In the OTG setup, the solar panel would replace 
the 5V adapter. Jericho has not tested any solar panel setup yet, but in theory it would work.

 

- Is the calibration of the thermistors NIST traceable? 
- Should I thin the wire endings to be used with screw terminals?  

No, professionals do not thin the wires due to different thermal expansion coefficients which overtime 
can create 

-How to make surface measurements underwater ? 
-How to hold the TDL on a wall ?

 

 

Summary of Contents for TDL-RevB

Page 1: ...Copyright Jericho Lab 2021 Explore Measure Understand 1 of 16 USER GUIDE THERMISTOR DATA LOGGER TDL REV B V1 1 JERICHO LABORATORY INC JERICHOLAB COM...

Page 2: ...Copyright Jericho Lab 2021 Explore Measure Understand 2 of 16 This page is intentionally left blank...

Page 3: ...ts OVERVIEW 4 REQUIREMENTS 4 SERIAL COMMANDS 5 QUICK START 7 HOW TO UPLOAD THE SOURCE CODE TO THE TDL 10 ADDITIONAL DOCUMENTATION AND FILES 11 PRODUCT SPECIFICATIONS 13 REFERENCES 14 CONTACT 14 WARRAN...

Page 4: ...re luminosity conductivity through resistive sensors Applications in the field of biology chemistry engineering and others No battery required Free access to the source code PACKAGE CONTENT 1X Thermis...

Page 5: ...VIN Display temperatures in Kelvin K units No confirmation or further instructions are required RESISTANCE Output resistance values along with temperatures No confirmation or further instructions requ...

Page 6: ...richo Lab 2021 Explore Measure Understand 6 of 16 Eample 3 A0001200 This is an example of vector that will generate an error The program will therefore keep the previous parameters Figure 1 TDL compon...

Page 7: ...ud rate is wrong On the bottom right set the baud rate to 115200 program default is 9600 Also select Carriage ending 9 Readable data will start coming in The typical output in the Serial Monitor windo...

Page 8: ...update the coefficients accordingly Note 2 Avoid impacts on the probe and the controller to maintain their accuracy and functionality Do not exceed the maximum temperature to maintain the accuracy of...

Page 9: ...2021 Explore Measure Understand 9 of 16 Figure 4 Typical output from the TDL device in the Serial Monitor of the Arduino Software In order you can see timestamp measurement ID temperatures 1 to 8 res...

Page 10: ...community the Arduino platform is very common worldwide HOW TO LOG DATA TO FILE EASILY The Arduino IDE can hold large quantities of data inside the serial monitor window However this data is kept in m...

Page 11: ...DDITIONAL DOCUMENTATION AND FILES 1 TDL Design Explained pdf 2 TDL Code Architecture pdf 3 TDL Source Code pdf 4 TDL Calibration Procedures pdf 5 TDL Applications List pdf 6 TDL Accuracy calculations...

Page 12: ...Copyright Jericho Lab 2021 Explore Measure Understand 12 of 16...

Page 13: ...bes 400 ms 2 S s Maximum measurement interval 96 400 000 ms 24 hr Default microcontroller baud rate 115200 bits per sec Calibration type end to end 3 point characterization ice bath 0 C 32 F warm bath...

Page 14: ...rochip com downloads en DeviceDoc Atmel 7810 Automotive Microcontrollers ATmega328P_Datasheet pdf Processing language official website Processing org Free Arduino tutorials https www tutorialspoint co...

Page 15: ...which has an electrical resistance that varies with the temperature of its material Why do I have to connect the thermistor to a specific channel Each thermistor has unique parameters called Steinhar...

Page 16: ...you connect a smartphone and a computer the smartphone acts as a slave and the computer as a host When you connect a smartphone and a TDL device the smartphone acts as a host and the TDL acts as a sla...

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