Physical Layout
Your Zap has components on two sides:
Side A (Output Side)
Blue Data LED (left)
Green Terminal Blocks (center - for future sensors)
Blue Status LED (right, next to button)
Reset Button (far right)
P1 Output Port (RJ12 with removable cover)
Side B (Input Side)
Green Power LED (left)
USB-C Port (center)
P1 Input Port (RJ12, right)
Ports and Connections
P1 Input Port (RJ12)
Location: Input side, right of USB-C port
Purpose: Connects to your energy meter's P1 port
Cable: Use included RJ12 cable
Power: Usually receives power from meter (no USB-C needed)
USB-C Port
Location: Input side, center
Purpose:
External power when P1 port doesn't provide it
Firmware updates (advanced users only)
When needed:
P1 port provides no power
Daisy-chaining devices
Meter far from WiFi router
P1 Output Port (RJ12)
Location: Output side, bottom
Purpose: Connect additional P1 devices (daisy-chain)
Default: Covered with removable plug
Important: Requires USB-C power when using
Green Terminal Blocks
Location: Output side, center
Purpose: Future sensor connections
Status: Reserved for upcoming features
Current use: Not active
LED Indicators
Power LED (Green)
Location: Input side, left
Solid green: Device has power
Off: No power - check connections
Data LED (Blue)
Location: Output side, far left
Blinks: Each time data is received from meter
Normal interval: Every 10 seconds
No blinking:
P1 port may be disabled
Contact utility to activate
Status LED (Blue)
Location: Output side, right (next to button)
Behaviors:
Pattern | Meaning |
Solid on | Bluetooth Setup mode - no WiFi configured |
Single blink at startup | Zap is starting |
Double blink (some time after start up blink) | Connected to WiFi successfully, typically this happens within 30 seconds but depends on WiFi coverage |
Slow blinking | Button held 2-5 seconds (restart pending) |
Fast blinking | Button held 5+ seconds (reset pending) |
Single blink | Button pressed briefly |
Reset Button Functions
The button provides different functions based on how long you hold it:
Quick Press (< 2 seconds)
Action: Status LED blinks once
Result: No action (acknowledgment only)
Hold 2-5 Seconds
Visual: Status LED blinks slowly
Release action: Restarts device
Use when: Device seems frozen
Hold 5+ Seconds
Visual: Status LED blinks rapidly
Release action: Reset
Result:
Clears WiFi credentials
Device starts in Bluetooth setup mode
Use when:
Changing WiFi networks
Device won't connect
Selling/moving device
Normal Operation
When everything is working correctly:
Green Power LED: Solid on
Blue Data LED: Blinks every ~10 seconds
Blue Status LED: Double blink pattern
App shows: Recent energy data
First-Time Setup
Connect Zap to meter's P1 port (input side)
Power LED turns green
Status LED stays solid blue (setup mode)
Open Sourceful Energy app
Enable Bluetooth on phone
Follow app instructions
Select 2.4GHz WiFi network
Success: Status LED shows double blink
Troubleshooting Quick Reference
Problem | Check |
No LEDs | Power connection, try USB-C |
Status LED solid | Device in bluetooth setup mode, WiFi configuration needed. |
Status LED single blink but never any double blink after that. | WiFi connection failed. Improve wifi coverage, or reset and reconfigure wifi. |
No Data LED blinks | P1 port activation needed |
Device hot | Wrong port type - disconnect! |
Important Notes
WiFi: Only 2.4GHz networks supported
Power: Most P1 ports provide power
Security: WPA2/WPA3 supported
Range: Stay close during setup (Bluetooth)
Updates: Automatic via WiFi
Support
For additional help:
Email: [email protected]
Include: LED behaviors, setup attempts
Photos: Meter connections if unsure