This version is outdated by a newer approved version.
This version (18 Nov 2021 08:01) is a draft.
Approvals: 0/1The Previously approved version (02 Jun 2021 10:54) is available.
This version (18 Nov 2021 08:01) is a draft.Approvals: 0/1The Previously approved version (02 Jun 2021 10:54) is available.
This is an old revision of the document!
Table of Contents
EVAL-CN0536-ARDZ Shield Overview
Geiger counters are one of the most commonly used tools to measure radiation levels. This is a very popular sensor in other countries like Japan where power is mainly generated from nuclear plants. This type of sensor is generally deployed in numbers across different areas and are linked together to a cloud server for easy monitoring.
EVAL-CN0536-ARDZ is a low-power Geiger counter in an Arduino form factor that can run on a 3V to 5V system supply. It has a novel architecture for its ultra-low-power, high voltage generator that is robust and adjustable across a wide voltage range allowing the user to set the sensitivity of the board accordingly. This reference circuit design is compatible with most of the Geiger-Muller tube sensors available in the market today with a voltage rating between 280V to 500V. Moreover, it uses a hysteric voltage regulation scheme by controlling the power supplied to the board oscillator minimizing the overall current consumption. It has a configurable voltage reference for its output allowing the board to safely translate the Geiger pulses to the logic level of the microcontroller. Lastly, it has audio and visual indicators to qualitatively alert the user as the radiation levels increase.
Simplified Block Diagram
Device Driver Support
This user guide will discuss how to use the EVAL-CN0536-ARDZ on the EVAL-ADICUP3029 together with the provided evaluation software. This will allow the user to access the counts per minute as well as the microsieverts per minute sensed by the board.
General Setup
Equipment
- PC with a USB port and Windows 10 (32-bit) or higher
- +6V DC Power Supply or equivalent bench supply
- USB type A to micro USB type A cable
- CN0536 Evaluation Software
- Small Philips screwdriver to adjust high voltage potentiometer
Peripheral Connectors
All connector pinouts for the EVAL-CN0536-ARDZ are described in the table below.
| Connector | Pin No. | Pin Name | ADuCM3029 Pin Function | CN0536 Pin Function |
|---|---|---|---|---|
| Arduino DIO High | 1 | SCL | I2C0_SCL/GPIO04 | NC |
| 2 | SDA | I2C0_SDA/GPIO05 | NC | |
| 3 | AREF | VREF+ | NC | |
| 4 | AGND | AGND (Analog ground) | DGND | |
| 5 | SCLK | SPI0_CLK/SPT0_BCLK/GPIO00 | NC | |
| 6 | MISO | SPI0_MISO/SPT0_BD0/GPIO02 | NC | |
| 7 | MOSI | SPI0_MOSI/SPT0_BFS/GPIO01 | NC | |
| 8 | CS | SPI0_CS1/SYS_CLKIN/SPI1_CS3/GPIO26 | NC | |
| 9 | RDY | SPI0_RDY/GPIO30 | NC | |
| 10 | IO28 | GPIO28 | NC | |
| Arduino DIO Low | 1 | IO08 | BPR0_TONE_N/GPIO08 | NC (FOR TESTING) |
| 2 | IO27 | TMR1_OUT/GPIO27 | HV POWER GOOD | |
| 3 | IO33 | XINT0_WAKE3/TMR2_OUT/GPIO33 | GEIGER DETECT SIGNAL | |
| 4 | IO09 | BPR0_TONE_P/SPI2_CS1/GPIO09 | ||
| 5 | IO13 | XINT0_WAKE2/GPIO13 | ||
| 6 | IO15 | XINT0_WAKE0/GPIO15 | NC | |
| 7 | TX | UART0_TX/GPIO10 | NC | |
| 8 | RX | UART0_RX/GPIO11 | NC | |
| Arduino Analog | 1 | AIN0 | ADC0_VIN0/GPIO35 | LED1 |
| 2 | AIN1 | ADC0_VIN1/GPIO36 | LED2 | |
| 3 | AIN2 | ADC0_VIN2/GPIO37 | LED3 | |
| 4 | AIN3 | ADC0_VIN3/GPIO38 | LED4 | |
| 5 | AIN4 | ADC0_VIN4/SPI2_CS3/GPIO39 | NC | |
| 6 | AIN5 | ADC0_VIN5/SPI0_CS2/GPIO40 | NC(FOR TESTING ONLY) | |
| Arduino Power | 1 | NC | - not connected - | NC |
| 2 | IOREF | +3.3V | IO_VREF (+3V3) | |
| 3 | RESET | SYS_HWRST_N | NC | |
| 4 | 3.3V | +3.3V | NC | |
| 5 | 5V | +5V | 5V | |
| 6 | GND | DGND (Digital Ground) | GND | |
| 7 | GND | DGND (Digital Ground) | GND | |
| 8 | Vin | DC Barrel Jack Power +7V to +12V | +7.5V |
More Information and Useful Links
Schematic, PCB Layout, Bill of Materials
EVAL-CN0536-ARDZ Design & Integration Files
- Schematics
- PCB Layout
- Bill of Materials
- Allegro Project
Software
End of Document
resources/eval/user-guides/circuits-from-the-lab/cn0536.1637218866.txt.gz · Last modified: 18 Nov 2021 08:01 by Harvey John De Chavez