Difference between revisions of "6 Channel Relay Driver Card"

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Line 70: Line 70:
  
 
* [[VFO-003]]
 
* [[VFO-003]]
 +
* Band select via menu
 
* J8 - Arduino P5-P9
 
* J8 - Arduino P5-P9
 
* Arduino pins
 
* Arduino pins

Revision as of 15:55, 21 January 2022

RELAY DRVE P1981-720PX.jpg

Features

  • Drives Ultimate relay-switched LPF kit
    • Open collector to turn off relay
    • Drives low to turn on relay
    • Only turn on one output at a time
  • Inputs
    • 6 channels (5 used)
    • Active-high in to drive relay to on state
    • 3.3K to transistor base
      • 1 mA for 3.3V drive
      • 1.5 mA for 5V drive
  • Outputs
    • Open Collector outputs from 2N3904 NPN transistors
  • Power
    • 9-14V power in
    • 5V power out to power relays
    • DC jack
  • 36x37mm card
    • 3 PCBs for $11 from OshPark

Ultimate Relay Card

Ultimate Relay Card 5.jpg

  • Jumpers

Jumpers-BPF.gif

Connectors

J1 - Input Connector

RELAY DRVR J1.PNG

  1. N/C
  2. IN1
  3. IN2
  4. IN3
  5. IN4
  6. IN5
  7. IN6
  8. GND

J2 - Output Connector

RELAY DRVR J2.PNG

  1. GND
  2. OUT6
  3. OUT5
  4. OUT4
  5. OUT3
  6. OUT2
  7. OUT1
  8. 5V OUT

Power Connector

  • 7-14V input
  • Center positive

Control via VFO-003

  • VFO-003
  • Band select via menu
  • J8 - Arduino P5-P9
  • Arduino pins
  1. Arduino D5 - 10M select
  2. Arduino D6 - 15M select
  3. Arduino D7 - 20M select
  4. Arduino D8 - 40M select
  5. Arduino D9 - 80M select
  6. Vcc
  7. GND

VFO-003 J8.PNG

Testing

  • Apply 9-12V to DC jack
  • Use LED w/ resistor on output to check 5V
  • One channel at a time
    • Pull up channel input to +5V
    • Check output with LED pulled up to +5V out

CAD

RELAY-DRV CAD.PNG