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PCB Articles

This section contains the hardware architecture documentation for each PCB assembly in the EverTag Connectivity Module family. The 232200 Base Std is the main reference document; variant PCBs describe only the differences from the base.

PCB Comparison

PCB Name MCU Module WiFi Battery NFC PIR LTE Ext Status
232200 Base Std PAN611 (nRF54L15) - - PCB antenna - - Active
232201 Base Bat PAN611 (nRF54L15) - LiFePO4 PCB antenna - - Active
232202 Base WIFI PAN611 (nRF54L15) ESP32-C5 - PCB antenna - - Active
232203 Base Bat+WIFI PAN611 (nRF54L15) ESP32-C5 LiFePO4 PCB antenna - - Active
232204 Base Full PAN611 (nRF54L15) ESP32-C5 LiFePO4 PCB antenna Yes Connector Not in first iteration
232210 Ext LTE EU - - - - - SIM7672E Not in first iteration
232211 Ext LTE US - - - - - SIM7672NA Not in first iteration

Document Structure

The base PCB (232200) document contains all chapters in full detail:

  1. Overview
  2. Block Diagram
  3. Schematics
  4. Pin-Out (incl. GPIO assignments for firmware)
  5. Component Selection
  6. PCB Design Notes
  7. Test Points & Validation
  8. Revision History

Variant PCBs (232201-232203) document only the delta from the base. For shared functionality, they reference the 232200 documentation.

Future PCBs (232204, 232210, 232211) are fully specified but are not included in the first PCB iteration. The enclosure and base platform are prepared for these extensions.

graph TD
    Base["232200 Base Std - Full Document"]
    Bat["232201 Base Bat - Battery delta"]
    Wifi["232202 Base WIFI - WiFi delta"]
    BatWifi["232203 Base Bat+WIFI - Combined delta"]
    Full["232204 Base Full - Future platform"]
    LteEu["232210 Ext LTE EU - Future"]
    LteUs["232211 Ext LTE US - Future"]

    Base --> Bat
    Base --> Wifi
    Base --> BatWifi
    Base --> Full
    Full --> LteEu
    Full --> LteUs

Shared Enclosure

EverTag Connectivity Module in enclosure -- front view and AE-AE cross-section

All connectivity module variants share the same enclosure (article 232506):

Parameter Value
Material PC+ABS matte
Flame rating UL94 V0
Color White matte
Prepared features PIR window region (not populated), internal volume for extension board (LTE modem + on-board chip antenna)

PCB Placement

The PCB is not centered inside the enclosure. LED and button placement on the PCB must account for the off-center position to align with the enclosure window and access points. Complete enclosure drawings are provided separately to the PCB designer (outside the scope of this documentation).