feat: RTC power-off sleep via PCF8563/BM8563 and the MOSFET latch (M5Paper) by gcormier · Pull Request #176 · OpenDisplay/Firmware

docs: M5Paper hardware bring-up findings (2026-10-26)

gcormier

committed

c6f9869

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

gcormier

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248b051

fix(m5paper): clear the on-board RTC's interrupts in m5paper_init()

gcormier

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0b7bf40

feat: CMD_POWER_OFF (0x0052) on the MOSFET latch; keep RTC wake flags for rtcConsumeWake

gcormier

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d0072af

fix(fastepd): IT8951 fast refresh in 4bpp falls back to full instead of sending gray data as 1bpp

gcormier

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27016a4

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

gcormier

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2d9a8f8

docs: M5Paper findings: IT8951 readback, 16000 s alarm fire, battery factor 0xAE

gcormier

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d672a6b

fix(fastepd): bit-reverse 1bpp rows for unmirrored IT8951 panels

gcormier

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34548b0

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

gcormier

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314e411

docs: M5Paper findings: 1bpp bit order fixed, mono verified on screen

gcormier

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35ec236

docs: M5Paper findings: 0x0052 power-off verified on battery

gcormier

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1a94f60

docs: M5Paper findings: power-button hold time about 1.1 s

gcormier

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0cb3e8e

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feat: RTC power-off sleep via PCF8563/BM8563 and the MOSFET latch (M5Paper) - #176

feat: RTC power-off sleep via PCF8563/BM8563 and the MOSFET latch (M5Paper)#176
gcormier wants to merge 23 commits into
OpenDisplay:mainfrom
gcormier:greg/awesome-dijkstra-5pq3ha-rtc

Commits on Oct 26, 2026

feat: original M5Stack M5Paper support (panel-IC 3005, FastEPD IT8951 path)

feat: RTC power-off sleep via PCF8563/BM8563 + MOSFET latch (M5Paper)

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

fix(m5paper): load unmirrored IT8951 frames B_ENDIAN; never drive input-only touch INT

Commits on Oct 27, 2026

docs: M5Paper hardware bring-up findings (2026-10-26)

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

fix(m5paper): clear the on-board RTC's interrupts in m5paper_init()

feat: CMD_POWER_OFF (0x0052) on the MOSFET latch; keep RTC wake flags for rtcConsumeWake

fix(fastepd): IT8951 fast refresh in 4bpp falls back to full instead of sending gray data as 1bpp

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

docs: M5Paper findings: IT8951 readback, 16000 s alarm fire, battery factor 0xAE

fix(fastepd): bit-reverse 1bpp rows for unmirrored IT8951 panels

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

docs: M5Paper findings: 1bpp bit order fixed, mono verified on screen

docs: M5Paper findings: 0x0052 power-off verified on battery

docs: M5Paper findings: power-button hold time about 1.1 s

Commits on Oct 28, 2026

feat(m5paper): run at 80 MHz and leave the Grove 5 V boost off

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

docs: M5Paper findings: battery RTC wakes, 80 MHz and Grove power off

docs(m5paper): note how to re-enable the Grove 5 V boost

Merge branch 'greg/awesome-dijkstra-5pq3ha' into greg/awesome-dijkstra-5pq3ha-rtc

docs: M5Paper findings: 80 MHz RTC wakes and upload on battery

docs: M5Paper findings: 16000 s RTC alarm wake on battery