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PICAXE DA TALOGGER (AXE110P)
C ontents:
Section 1 - General Information
Section 2 - Self Assembly Kit
Section 3 - Circuit Diagram
Section 4 - Input/Output pins and default sensors
Section 5 - Staring a new Datalogger Mission
Section 6 - Retrieving data from a Mission
Section 7 - Using the AXE034 Real Time Clock
Section 8 - Using the AXE033 Serial LCD
Section 9 - Using the AXE111 Memory Expansion
Section 10 - Using the SPE030 Speech Module
Section 11 - Using the SEN008 Humidity Sensor
1) Description:
The PICAXE datalogger is an economical four
channel datalogger based upon the PICAXE-18X or
18M2 microcontroller. This microcontroller can be
re-programmed to perform many different types of
logging experiment ("mission").
Logging can be carried out at regularly spaced
intervals (typically 10 seconds to several hours), or
an optional real-time-clock chip can be added to
the datalogger to ensure accurate logging intervals over long periods (once a week, once a month etc.)
Data is saved in an external memory chip. If desired this memory chip can be upgraded for increased
memory capacity. An optional memory expansion board can also be used to greatly increase memory
capacity.
Once the mission is complete, data can be uploaded for analysis on a computer. Data can also be
displayed (at the time of logging) on an optional liquid crystal display if desired.
Programming of the mission is simplified by use of automated 'Wizards', which generate the BASIC code
to download to the PICAXE-18X or 18M2 microcontroller. Experienced users may also choose to write
their own mission BASIC code (or to modify the programs generated by the automated wizard).
Features:
• Easy to use software wizards to start datalogging missions.
• Supports PICAXE-18X / 18M2 microcontroller and on-board EEPROM data memory.
• 4 logging channels.
• Dedicated digital temperature sensor channel.
• Small footprint - approx. same size as the power supply (3x AA cells).
• Optional real-time-clock with lithium cell backup (AXE034)
• Optional serial LCD module for on-board display of data (AXE033)
• Expandable i2c bus for additional EEPROM memory capacity (AXE111)
• Low power consumption, powered by 3x AA cells.
The datalogger is available as a pre-assembled complete unit.
For the full datasheet please see www.rev-ed.co.uk/docs/axe110.pdf
revolution
Revolution Education Ltd.
Web: www.picaxe.co.uk
Version 2.0 12/10
AXE110.PMD

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Summary of Contents for Revolution AXE110P

  • Page 1 PICAXE DA TALOGGER (AXE110P) C ontents: Section 1 - General Information Section 2 - Self Assembly Kit Section 3 - Circuit Diagram Section 4 - Input/Output pins and default sensors Section 5 - Staring a new Datalogger Mission Section 6 - Retrieving data from a Mission...
  • Page 2: Input Channels

    Connection of a higher voltage (e.g. a 9V PP3 battery), or accidentally reversing the power supply connections, will damage the ICs and digital temperature sensor on the datalogger. These will then require replacing. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 3: Additional Outputs

    It is also strongly recommended that the user has read the ‘Tutorial in using the i2c bus’ (AXE110_i2c.pdf), which explains how to use the 24LCxx series EEPROM memories and the DS1307 real-time-clock. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 4 (*** denotes components which must be soldered the correct way around. See notes above). (IC2 & cell (AXE034) and piezo sounder PZ (SPE002) are optional upgrades not included in pack) revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 5 11. If using the optional serial LCD (AXE033), connect it to the LCD header. Note that LED1 will not flash unless the optional RTC upgrade is fitted and the DS1307 RTC clock chip has been initialised. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 6 AXE110 PICAXE Datalogger - full circuit 4.5V LED1 PICAXE Reset Out6 Out4 Out1 Temp Out5 DS1307 24LCxx Out3 Out7 Out2 Out0 Vbat LED2 EEPROM CLOCK BAT1 Datalink...
  • Page 7 The digital temperature sensor is a very accurate device which will give readings in exact degrees celsius by use of data the ‘readtemp’ command. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 8 DS1307 RTC – most accurate, but requires RTC upgrade There is also a fourth option to select readings at specific time/dates using the RTC upgrade. This is generally used on much longer datalogging missions. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 9 Note this option cannot be used at the same time as the serial LCD option, as both options use output6. If selected, a jumper wire should be soldered across the pads marked LK1 on the bottom of the AXE110 datalogger module. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 10 File>Save As menu to save the data as a CSV format text file. This file can then be opened (if desired) in other applications such as Microsoft Excel. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 11 6V, and so will only operate correctly at 4.5V if the diode D1 on the serial LCD module is bypassed with a piece of wire. See the AXE033 datasheet for more details. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10...
  • Page 12 This module uses the i2c bus. To use this module insert the bottom 5 pins (i2c and power) of the SPE030 PL1 connector into the AXE110 i2c connector (CT8). See the SPE030 datasheet for more information on how to use this module. revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...
  • Page 13 = b1 - 41 * 100 / 157 ‘ change to %RH debug b1 ‘ display on computer screen pause 500 ‘ wait 0.5 second goto main ‘ loop revolution Revolution Education Ltd. Web: www.picaxe.co.uk Version 2.0 12/10 AXE110.PMD...