crwdns2933803:04crwdne2933803:0
crwdns2933797:0Renecrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Rene
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crwdns2933807:0crwdne2933807:0
| + | [title] Reverse engineering |
|---|---|
| + | [* black] Screen labelled "NFP200H-20A", could not identify further. Probably some standard TFT display with SPI/I2C. |
| + | [* black] Backside main PCB: |
| + | [* black] Red square: Artery AT32F403A CGT7 (Main microcontroller) with orange square: W25Q128JV (128M-bit Serial Flash Memory with uniform 4KB sectors and Dual/Quad SPI) |
| + | [* black] Blue square: 3PEAK TPA626 TPA626 (Bi-Directional Current and Power Monitor) |
| + | [* black] Green square: RS2228 MCO7117 (High-Speed USB 2.0 (480-Mbps) 1:2 Multiplexer/Demultiplexer Switch). Probably to switch between the USB micro and -C inputs. |
| + | [* black] Pink square: IC labelled IV7NS. I think it might be a MPS MP2451DT step-down converter. Probably to always provide the 3.3V logic-level voltage for the ICs. |
| + | [* black] Yellow squares: could not identify. One (presumably) QFN14 labelled "UAAC CEH" and one with unknown form factor "WL5 J3". |
| + | [* black] Bluetooth board: pogo-pins to make contact to main board and Tuya BEKEN BK3432 |
crwdns2933777:01crwdne2933777:0
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crwdns2933777:02crwdne2933777:0
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crwdns2915182:0crwdne2915182:0