https://meshtastic.org/assets/js/e8c34b5f.83f5cfcf.js

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1,{value:"External device using Serial Module",id:"external-device-using-serial-module",level:2}];function p(e){let t={a:"a",code:"code",h2:"h2",p:"p",...(0,n.R)(),...e.components};return(0,s.jsxs)(s.Fragment,{children:[(0,s.jsxs)(t.h2,{id:"i2c-peripherals",children:["I",(0,s.jsx)("sup",{children:"2"}),"C peripherals"]}),"\n",(0,s.jsxs)(t.p,{children:["I",(0,s.jsx)("sup",{children:"2"}),"C peripherals like ",(0,s.jsx)(o.A,{term:"OLED",definition:"A display type used on many Meshtastic devices. The OLED Type setting selects which panel driver the firmware uses.",routePath:"/docs/terms/",children:"OLED"})," Displays (e.g. SSD1306 or SH1106) and keyboards (e.g. CardKB) can be connected to ",(0,s.jsx)(o.A,{term:"GPIO",definition:"An uncommitted digital signal pin on a device.",routePath:"/docs/terms/",children:"GPIO"})," pins 4 (SDA) and 5 (SCL), which will be recognized on boot. Note that for keyboard input, the ",(0,s.jsx)(t.a,{href:"/docs/configuration/module/canned-message",children:"Canned Message Module"})," has to be enabled and the ",(0,s.jsx)(t.a,{href:"/docs/configuration/module/canned-message#input-source",children:"input source"})," should be specified."]}),"\n",(0,s.jsx)(t.h2,{id:"external-device-using-serial-module",children:"External device using Seri

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