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jeffc/nrf52-watch-obsolete
obsolete repository - see https://github.com/jeffc/nrf52-watch-firmware
Boards in 2 GitHub repositories, designed in KiCad, that use the M41T62LC6F by STMicroelectronics (-40℃~+85℃ 1.3V~4.4V 350nA Built-in I2C Watchdog timer、Programmable clock output、Alarm function、Built-in crystal oscillator LCC-8(1.5x3.2) Real Time Clocks ROHS). See how each wires it, with its parts, size, README and files; the M41T62LC6F’s symbol, footprint and pinout are on its own page.

jeffc/nrf52-watch-obsolete
obsolete repository - see https://github.com/jeffc/nrf52-watch-firmware

DasBasti/SchmartWatch_Hardware
Smart watch built from only electronic components

jeffc/nrf52-watch-obsolete
obsolete repository - see https://github.com/jeffc/nrf52-watch-firmware

jeffc/nrf52-watch-obsolete
obsolete repository - see https://github.com/jeffc/nrf52-watch-firmware

jeffc/nrf52-watch-obsolete
obsolete repository - see https://github.com/jeffc/nrf52-watch-firmware