Arduino Ide Compatible Geiger Counter Dosimeter /w Lcd Shield

US $34.95

Vilnius, Lithuania
Jan 30th

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You are bidding for the new, fully assembled, microprocessor-based ionizing radiation counter with Black-on-Green LCD, threshold LED, button-and-Buzzer snap-on shield. This listing is without the Geiger–Muller tube, TTLSerial<>USB adapter and battery. So in order to use it you need to have a Geiger–Muller tube which works at voltages up to 525V. Currently I also have the following tubes in stock (please inquire by message): SBT-9 (alpha beta and gamma) SI-29BG (beta and gamma) SBM20 (beta and gamma) SBT11 (alpha beta and gamma) SI8B (alpha beta and gamma) SBT10 (alpha beta and gamma) This device is preloaded with adapted GeigerKit_Default sketch (v.11.0.1) (please read more about v.11.0.1 below) This device has an integrated IR receiver and a menu system controllable with any NEC, or Sony(preset as default) type IR TV remote. (note: IR TV remote is not a part of the listing) Besides control of other parameters this feature allows changing CPM>uSv or uR ratio for tubes through the menu without a need to reprogram the firmware. IR remote control pictured below is not a part of this listing but is available as an option for additional 3 USD If you would like one included please ask before paying and I shall adjust the e-bay invoice. note: You can choose either Black-on-Green (default) or White-on-Blue LCD display if you prefer Black-on-Green LCD display please contact me by a message. Six pictures above show the device with the LCD shield on and removed (last three pictures) You bid for the device like in he above pictures but with a White-on-Blue LCD --- Assembly is based on Geiger counter schematics publicly available on the Internet. DIY Geiger counter project page This device is preloaded with adapted GeigerKit_Default sketch (v.11.0.1) In videos below you can see how the devce functions (note: videos are for reference only) DESCRITPION Counter: can detect ?, ? and ? ionizing radiation depending on the Geiger–Muller tube you shall connect. simultaneously displays the Count Per Minute (CPM) and equivalent dose rate of radiation in ?Sv/h on the LCD display. indicates detection of ionizing particles with clicking sound and flashes of the yellow LED. (has a jumper for disconnecting-muting the buzzer); has a TTL-serial connector for connection to a computer (more information on connection to computer - below); when connected to computer counter outputs CPM, ?Sv/h and power voltage data in one minute intervals; a threshold LED lights up when preprogrammed threshold in Counts Per Minute (CPM) are exceeded. Push-button is provided for initial threshold value setup and change of the display modes (screens) - please reed more about that below in the Software functionality description section. Use of other tubes This counter circuit is well suited for use with any other Geiger–Muller tubes wether produced for just ? just ? or combined ?+? or universal ?+?+? detection. When using other tubes it is important that: - tube is specified to reliably operate in the voltage interval up to 525V. - specified tube anode resistor value is around 4,7 M? (note: some other - usually energy compensated ?+?+? tubes could require a different anode resistor value but changing this resistor is not a big issue) note: a) voltage can be adjusted by trimmer potentiometer present on the PCB. b) the CPM to ?Sv/h ration for that particular tube can be changed by IR Sony type TV remote LCD display LCD display is a 2 Line x 16 character backlit display. You can choose either White-on-Blue (default) or Black-on-Green LCD display. Please contact me by message is you prefer Black-on-Green LCD installed. Powering the Geiger Counter is designed to be powered from 9V battery when not connected to the computer. It is recommended to buy a quality 6LR61 type battery. If one desires, the whole circuit can be powered also from a 3 AA or 3 AAA batteries connected in series or 4 rechargeable batteries (rechargeable batteries are 1.2V) as circuit is actually operating at ~ 5V and there is a voltage regulator which steps down the voltage from 9 V to 5. If you want to power the kit with lower voltage batteries 1,2 to 4,8 V please inquire. I have some step-up converters in stock. When connected to computer (TTLSerial<>USB converter which is not a part of this listing is needed), counter can be powered throughout the TTL-Serial header and draw power from the computer. Power consumption Geiger detector part draws up to 5.5mA and the microprocessor part up to around 16 mA totaling ~22mA. With LCD backlight total current drawn is around 41mA. Connecting to a computer Circuit has a TTL-serial connector (the 90 degree bent header) this is a serial connector, however it operates at Transistor to Transistor Voltage levels and can be connected to the computer through appropriate ttl-com port or ttl-usb adapter (TTLSerial<>USB converter which is not a part of this listing is needed). When connected to computer Counter can be a) powered from the computer b) simultaneously outputs to the standard serial terminal CPM, ?Sv/h and power voltage data in one minute intervals. Software The Software for the Counter is open-source (please ask if you need/want it in the file), developed in Arduino.cc Integrated Development Environment (IDE), which is very easy to grasp even for non-pros compared to programming in C. Therefore this counter is also good opportunity to learn about micro-controllers and change the software to your taste. Version v.11.0.1 features: Alarm threshold settable at power-on (retained in eeprom). Alternate display (by press of the button) A "quick response" bar graph (search aid) Alarm (optional): When the CPM exceeds a preset value, the red threshold LED shall be lit.When the CPM drops back under the initially preset alarm threshold the LED whale go off. The alarm threshold is configured during power up. After the first few screens you will see a "Set Alarm" prompt. To preset the alarm you have to use a push button or simply let the preset function time out (in 3 sec. of inactivity) to keep the then current setting. Pushing the button point shall start a list of alarm settings. Push the button (or hold it down) until you find the desired setting, then release the button to set that last value. After the 600 CPM setting, the choices repeat. The possible settings increment by 10 until 100 CPM and then by 50 until the 600 CPM setting. There is also a "No Alarm" setting. The chosen setting is retained in eeprom so it does not need to be set each time. Second Screen: The same push button used to set the alarm is used to turn on or off the second screen. The chosen screen stays on until the button is pushed again. The first time the screen is entered, the totals will begin to accumulate from zero. After accumulation has started, reentering the mode will display the totals that have accumulated. The second screen shows values for 1 minute and 10 minute periods. While the period is in progress (time not reached) the accumulated counts for the period are displayed. (On the 10 minute line, the elapsed time is also shown on the right side.) When a given period is complete, the format of the display changes . It then becomes the running average of CPM and uSv/h for the last 1 minute and 10 minute periods. The second screen is updated every 5 seconds. Bar Graph: The bar graph on the first screen shows quick changes in counts to make it easier to spot trends when surveying. It has a sample rate of 1/20 of a second. by default Output is configured for Radiation logger software (please see adaptation notes) note: TTLSerial<>USB converter which is not a part of this listing is needed. Other: Adapted firmware version contains all multiple other features present in original v.11.0.1 Please refer to the DIYGeigerCounter project site for details. --- Dimensions PCB 40.6mm(1.6in) x 91.4mm(3.6in) x 27.9mm(1.1in) LCD 35.6mm(1.4in) x 78.7mm(3.1in) x 10.2mm(0.4in) Tube length including terminals 60mm(2.36in), diameter 10mm(0.39in) --- note: if you have a 3D printer, you might be interested printing this nice enclosure from Thingiverse.com --- I shall accept paypal only and shall attempt sending the board within one working day after the receipt of the payment. You shall have to bear any customs or other duties and taxes of your country whatsoever. I shall ship the item from Europe Worldwide as a Standard Int`l package. Please allow enough time for a shipment to arrive especially if item is sent between continents. I usually receive packages from Europe within 1-1,5 weeks and from USA or Asia 2 to 3 weeks. Shipping to Japan is free of charge. Happy bidding! Please check other items I am selling on eBay Thank you for reading!

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	IMEX
Type	Dosimeters
Model	:DiY-GDC1.2.1woTBUSB
Country of Manufacture	Lithuania
MPN	:DiY-GDC1.2.1woTBUSB