These above pictures are for reference only (not part of this listing). Please contact me by message is you prefer White-on-Blue or Black-on-Green/Orange-when-backlit LCD installed. 52 pcs of SMD components are already assembled and soldered on the board. User has just to solder-in a few through-the-whole components which is easy to do even for a novice.
While retaining all the previous features and functions of the previous design. New version is much more compact and is mainly based on SMD components. Has a tone mode for search of the radioactive source (like in a metal detector) switchable On or Off with an installed microswitch. LCD backlight is now switchable On or Off by double-clicking the "MODE" button.Sound is now also switchable On or Off by double-clicking the "TONE-ZEROING" button. Switching between the "Primary" and "Secondary" conversion rates is now done by long-pressing the "TONE-ZEROING" button with an few seconds indication of which rate is chosen on the LCD. Additional potentiometer is provided to reduce the brightness of the LCD backlight (which results in essential battery power savings). High Voltage is now adjustable from. 1KV (1000V) which allows reliable use of high working voltage Geiger-Müller tubes. JTAG, i2C, TTL level Serial and battery power headers are provided for extension and connectivity purposes. This listing is without a Geiger-Müller tube so you need to use your own or if you don't have and need one please message me. Currently I have in stock the following. SBT-9 (alpha beta and gamma).
CTC- 5 (beta and gamma). SBT11 (alpha beta and gamma). SBT11A (alpha beta and gamma).
SI8B (alpha beta and gamma). SBT10 (alpha beta and gamma).SBT10A (alpha beta and gamma). SI19BG (alpha beta and gamma). This micro-controller is already preloaded with a. Feature - amended geiger kit sketch. The schematics of the device is also available but as links can no longer be given here try to look for impexeris on GitHub. Please read more about features of v. 11.0.2 below on this page. Detailed printed assembly instructions and pictures will be sent together with a kit. IR remote control pictured below is not a part of this listing but is available as an option for additional 4 USD. If you would like one included please ask before paying and I shall adjust the e-bay invoice. The set contains following parts. Two-sided PCB with all the 52 pcs of SMD parts already pre-soldered and tested. 100 type 3296W multiple-turn potentiometer (for setting the High Voltage) - this potentiometer is already preset so for 400V. Single turn potentiometers - trimmers (for LCD contrast and LCD brightness r). Yellow 3mm LED (detection indication). Red 3mm LED (alarm threshold indication).
Two 90° angle push button switches ("MODE" and "TONE-ZERO" multifunction buttons). KF350-2P 3.5mm terminal blocks. 24-pin 2,54 pitch cut-able male header for all headers. HD44780 16x2 characters LCD module white-on-blue with backlight backlight current draw. I shall include a detailed instructions/advice with a number of pictures to help you assemble your geiger counter.In case you shall have question or shall need troubleshooting assistance I shall be glad to assist. I shall also offer a free last-resort troubleshooting support in the unlikely case you would require it (you shall just have to cover postal expenses).
Note 1: the ATMEGA328-PU already contains a boot-loader and software loaded. Arduino-geiger-pcb and find it in my blog. Note 2: the adapted firmware version contains all multiple other features present in original v. 11.0.1 Please search and refer to the DIYGeigerCounter project site. Note 3: kit is preprogrammed fro SBM-20 and LND-712 tubes (not a part of this listing).
If you intend to use other tube please consult in advance. When assembled the device will look like in these pictures below (note: below pictures are provided for reference purpose only).
Some videos (for reference only - not a part of this listing). Schematics takes its origins from a Geiger counter schematics publicly available on the Internet - on DIYGeigerCounter page and is further advanced with the final schematics freely available.
This device is preloaded with adapted GeigerKit sketch v. Is a free software and is available.
Can detect , and ionizing radiation. 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.
"Mpde" Push-button is used for initial threshold value setup and change of the display modes (screens) - please reed more about that below in the Software functionality description section. LCD display is a 2 Line x 16 character backlit display. Counter is designed to be powered from 9V battery when not connected to the computer.
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. Here's the video (for reference only - not a part of this listing).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. With the LCD backlight being Off device draws 15 mA from the 9V battery. With LCD backlight fully ON total current drawn is around 44mA however with the 10K LCD brightness trimmer power draw can be reduced up to 18mA. When using Tone mode, power draw can peak to 75 - 100 mA. 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. Therefore this counter is also good opportunity to learn about micro-controllers and change the software to your taste.
Alarm threshold settable at power-on (retained in eeprom). Eeprom can be reset to default values by holding the "Mode" button during boot. Alternate display (by press of the button). A "quick response" bar graph (search aid).Tone mode (radioactive source 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. 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. 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.
Then on the blog look for the article called. How to prepare using Radiation logger.Additional potentiometer is installed to reduce the brightness of the LCD backlight (which provides essential battery power savings). This adapted firmware version contains multiple other features present in original v. 11.0.1 Please refer to the. PCB 42.5mm(1.673in) x 92.9mm(3.658in) x 21.7mm(0.854in).
LCD 35.6mm(1.4in) x 78.7mm(3.1in) x 10.2mm(0.4in). I usually receive packages from Europe within 1-1,5 weeks and from USA or Asia 2 to 3 weeks. The item "Geiger kit DIY Arduino IDE compatible easy nuclear radiation counter witho tube" is in sale since Sunday, June 28, 2020. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Test Meters & Detectors\Radiation Detectors".The seller is "impexeris" and is located in Vilnius. This item can be shipped worldwide.