Find the exact model
Search ToughC5, Chain MIC, Chain Switch, Chain RGB, PaperMono-Lite, StackChan Core, DinMeter v1.1, AI Pyramid-Pro, UNO Breakout Carrier or EK-RA8P1 v1. These ten new records join expanded references for 124 existing records. Variant names and source revisions remain separate.
ToughC5 ↗
Read the connector and its purpose
Selected XIAO edge contacts and M5Stack HY2.0, Hat2-Bus and Cardputer-Adv EXT connectors have searchable source-backed pin-purpose tables. They cover 159 external contacts; internal GPIO allocation tables are not presented as exposed terminals. Use the matching manufacturer image for physical orientation and check all voltage and configuration requirements.
Keep reference types distinct
The 232 added references include 14 physical pinout images, 152 original PDFs, 13 pin-function sheets and 53 supporting label, GPIO or connector references. Arduino carrier pages distinguish 3.3 V MCU signals from 1.8 V MPU signals. Renesas manual pages retain jumper, switch and unpopulated-header notes. Source photos, block diagrams and schematics do not establish a complete physical pinout.
Coverage and publication
Collection 2026.10.2 is within First Edition / 2026. This targeted pass is not a complete worldwide inventory. Failed downloads, exact-variant leads and electrical-review gaps remain recorded. Original artwork retains its own rights. Existing desktop installers retain their published catalogs; the expanded references are available in the browser guide and current source.