License

Public Domain

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2 months ago 106
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

Uses MOSFETs to intialize power and maintain power by HIGH output on PD7. Initiated by trigger-switch momentary closing. Circut includes NRF2401 to transmit trigger event and battery status to listening unit. Self power-down with PD7 LOW.

Credit and thanks to Ralph S Bacon YouTube channel: https://www.youtube.com/channel/UC8Ob-HnnmhlgSv5Vs_i32TQ https://www.youtube.com/watch?v=g1rbIG2BO0U&t=1675s https://www.youtube.com/watch?v=C-VnvjEP0-k

Documents

RF Event Trigger v0.3b

RF Event Trigger

BOM

ID Name Designator Footprint Quantity
1 AtMel 328P DIP U1 DIL28-N 1
2 NDP6020P Q1 TO-220(TO-220-3) 1
3 IRLZ44NPBF Q2 TO-220(TO-220-3) 1
4 180 R5 AXIAL-0.3 1
5 4k7 R1 AXIAL-0.3 1
6 1k R3,R2 AXIAL-0.3 2
7 16Mhz Y1 HC49US 1
8 22pF C1,C2 RAD-0.1 2
9 3v3 VR Module P6 HDR-3X1/2.54 1
10 10k R6 AXIAL-0.3 1
11 100k R4 AXIAL-0.3 1
12 sw1-2 P7 HDR-1X1/2.54 1
13 R LED1 LED-TH_2PIN-L3.50-W3.80-PITCH2.28-L 1
14 G LED2 LED-TH_2PIN-L3.50-W3.80-PITCH2.28-L 1
15 Bat + P1 HDR-1X1/2.54 1
16 Bat - P2 HDR-1X1/2.54 1
17 reset SW2 SW-DIP-6X6X5 1
18 nrf2401 U2 NRF24 1
19 ICSP P3 HDR-3X2/2.54 1
20 10u C3 RAD-0.1 1
21 sw1-1 P8 HDR-1X1/2.54 1

Attachments

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Members

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