Lightning Strike Counter

Noise

Antenna

Stormwise / Antenna plans

Circuits

Lightning Strike Counter V1 / Lightning Strike Counter V2 / Lightning Strike Counter V4

TimBitson: Lightning 1 / TimBitson: Lightning 2

Techlib / LD

Lightning Radar / Canadian Forest Service

Vaisala / Time of flight

Gladstone Family / Tim Bitson / lightning / Carter Lake 

X1      4 pin Terminal block       ED2233-ND  
X2      RJ-45                      A9013-ND

U1      DS2423                                               93B5525 ($10.70)

OK1     4N37 Opto Isolator         160-1306-5-ND

T1, T2  2N3904 NPN Transistor      MMBT3904TPMSCT-ND

LAMP1

L1      Ferrite Bead               M2310-ND
                                   M8708-ND

D1, D2  BAT54S                     BAT54SWT1OSCT-ND

C1      0.1 uF Ceramic             311-1141-1-ND

R1       15K 1/4 W                 15KQBK-ND
R2      100K 1/4 W                 311-100kFCT-ND
R3,R4     1M 1/4 W                 311-1.00MFCT-ND
R4       430 1/4 W                 311-430FCT-ND

BAT1    9V Battery strap           2241K-ND
Assembled lightning detector with battery added so that counter will retain count.
Assembled unit shown in junction box. The antenna extends inside the PVC pipe screwed into the top of the junction box.