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MightyOhm Geiger Counter solderpad

A Geiger counter that logs to a serial port

mightyohm.com/blog/products/geiger-counter/

Recent activity:

  • psd updated5 years ago
  • 9600 updated5 years ago
  • 9600 pushed6 years ago

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Description

A hackable ATtiny2313-based Geiger counter for educational purposes which logs data to a serial port.

Schematic

Board

Bill of Materials

Designator Value Description
B1 2xAAA
C1 .01uF CAPACITOR, American symbol
C2 220pF CAPACITOR, American symbol
C3 1nF CAPACITOR, American symbol
C4 0.1uF CAPACITOR, American symbol
C5 100uF POLARIZED CAPACITOR, American symbol
D1 1N4937 DIODE
D2 1N914 DIODE
H1 MOUNT-PAD-ROUND3.0 MOUNTING PAD, round
H2 MOUNT-PAD-ROUND3.0 MOUNTING PAD, round
H3 MOUNT-PAD-ROUND3.0 MOUNTING PAD, round
H4 MOUNT-PAD-ROUND3.0 MOUNTING PAD, round
J1
J2
J3
J4
J5 ICSP PIN HEADER
J6 PULSE PIN HEADER
J7 SERIAL PIN HEADER
L1 10mH Inductor
LED1 RED MightyOhm Engineering
LOGO1 OSHW_LOGO_FILLX0200-NT
LS1
Q1 FJN3303F NPN TRANSISTOR
Q2 2N3904 NPN TRANSISTOR
Q3 2N3904 NPN TRANSISTOR
R1 100K RESISTOR, American symbol
R2 4.7M RESISTOR, American symbol
R3 10K RESISTOR, American symbol
R4 22K RESISTOR, American symbol
R5 1K RESISTOR, American symbol
R6 330 RESISTOR, American symbol
R7 100K RESISTOR, American symbol
R8 15 RESISTOR, American symbol
R9 220K RESISTOR, American symbol
R10 10K RESISTOR, American symbol
R11 100 RESISTOR, American symbol
S1 POWER
S2 OMRON SWITCH
TP1 GM_PULSE Test Point
TP2 HV+ Test Point
U1 TLC555CP TIMER
U2 ATTINY2313 Atmel Tiny2313
VR1 10 3386 Series
X1 8MHz Ceramic resonator 10.01 to 13.00 MHz

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This project is © Jeff Keyzer / MightyOhm Engineering, and is published under the terms of the Creative Commons Attribution-ShareAlike 3.0 United States licence.