Board-dat/DVA/DVA1014-dat/DVA1014-dat.md
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@@ -16,6 +16,21 @@ product url -
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![](2026-02-07-17-55-41.png)
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+pin definitions
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+
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+- DTR
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+- A5
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+- A4
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+- A0
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+- D2
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+- D6 / TXD
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+- D5 / RXD
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+- VIN
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+- GND
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+
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+on board LED == D3
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+
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+programmer pin G / V / R / C / D == GND / VIN / RST / SWC / SWD
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Chip-cn-dat/LGT-dat/LGT8F328-DAT/LGT8F328-DAT.md
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@@ -52,7 +52,7 @@ common pin
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## periperhals
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-![LGT8F328-SSOP20-dat/2025-06-25-14-42-46.png](LGT8F328-SSOP20-dat/2025-06-25-14-42-46.png)- [[UART-dat]] - [[GPIO-dat]] - [[PWM-dat]] - [[ADC-dat]] - [[DAC-dat]]
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+- [[UART-dat]] - [[GPIO-dat]] - [[PWM-dat]] - [[ADC-dat]] - [[DAC-dat]]
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## LGT8F88A-QFP32 MIN System
Chip-dat/Nordic-dat/NRF5x-dat/NRF52832-dat/2026-03-04-19-57-35.png
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Chip-dat/Nordic-dat/NRF5x-dat/NRF52832-dat/2026-03-04-19-58-42.png
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Chip-dat/Nordic-dat/NRF5x-dat/NRF52832-dat/2026-03-04-19-59-30.png
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Chip-dat/Nordic-dat/NRF5x-dat/NRF52832-dat/2026-03-04-20-06-45.png
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Chip-dat/Nordic-dat/NRF5x-dat/NRF52832-dat/NRF52832-dat.md
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# NRF52832-dat
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-- [[NRF5x-dat]] - [[NRF52832-dat]] - [[NRF52840-dat]] - [[nordic-dat]]
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+- [[NRF5x-dat]] - [[NRF52832-dat]] - [[NRF52840-dat]] - [[nordic-dat]] - [[NFC-dat]] - [[bluetooth-dat]]
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+
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+- [[battery-dat]] - [[sensor-dc-voltage-dat]]
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+
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+
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+## chip
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+
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+- QFN-36
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+
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+![](2026-03-04-19-57-35.png)
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+
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+- [[NFC-dat]] P09 / P10
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+
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+- [[DFU-dat]] P0.20
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+
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+- [[serial-dat]] P0.06 == TXD / P0.08 == RXD
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+
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+![](2026-03-04-19-58-42.png)
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+
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+debug connector
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+
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+![](2026-03-04-19-59-30.png)
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+
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+SWDIO / SWDCLK / P0.18 / reset
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+
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+module MDBT 42
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+
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+![](2026-03-04-20-06-45.png)
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+
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+
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+
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## ref
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Network-dat/NFC-dat/NFC-dat.md
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- [CLRC66303 == CLRC663 plus Family: High-Performance NFC Frontends](https://www.nxp.com/products/CLRC66303HN)
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+- [[NRF5x-dat]] - [[NRF52832-dat]] - [[NRF52840-dat]] - [[nordic-dat]] - [[NFC-dat]] - [[bluetooth-dat]]
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+
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## Boards
SDK-dat/DFU-dat/DFU-dat.md
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+
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+
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+# DFU-dat
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+
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+- [[UF2-dat]]
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+
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+- [[NRF52832-dat]] - [[NRF52840-dat]]
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+
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+To enter **Device Firmware Update (DFU)** mode, use one of the following three methods depending on your bootloader:
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+
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+### 1. Physical Button (Standard)
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+* **Action:** Hold the **Reset** button (or **Button 1**) while powering on or plugging in the USB.
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+* **Result:** A slow pulsing/breathing LED indicator.
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+
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+### 2. Double-Tap Reset (Adafruit/Arduino)
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+* **Action:** Quickly press the **Reset** button twice (within 0.5s).
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+* **Result:** The device appears as a USB drive named `NRF52BOOT`.
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+
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+### 3. Software Trigger (BLE)
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+* **Action:** Connect via the **nRF Connect** app.
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+* **Command:** Locate the **Secure DFU Service** and write `01` to the Control Point characteristic to jump to the bootloader.
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+
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+
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+
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+## ref
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+
SDK-dat/LGT-SDK-DAT/LGT8F328-SDK-DAT/LGT8F328-SDK-DAT.md
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@@ -141,7 +141,7 @@ for [[DVA1009-dat]]
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![](2026-02-11-01-53-41.png)
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-
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+firmware - SSOP20 - C:\Users\Administrator\AppData\Local\Arduino15\packages\lgt8fx\hardware\avr\2.0.7\bootloaders\lgt8fx8ps20\optiboot_lgt8f328ps20.hex
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Tech-dat/Sensor-dat/sensor-power-dat/sensor-voltage-dat/sensor-dc-voltage-dat/2026-03-04-20-12-22.png
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Tech-dat/Sensor-dat/sensor-power-dat/sensor-voltage-dat/sensor-dc-voltage-dat/sensor-dc-voltage-dat.md
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![](2026-02-10-16-41-40.png)
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+![](2026-03-04-20-12-22.png)
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+
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+- 2M / 806K 1%
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## ref
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app-dat/OBD-dat/OBD-dat.md
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@@ -15,12 +15,19 @@ https://github.com/Edragon/OBD == Repository unavailable due to DMCA takedown.
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- ELM327
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-- scanmaster ELM
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+- scanmaster ELM / torque (apk apps)
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![](2026-03-04-18-37-52.png)
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+## function
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+- examine the enginee's error code
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+
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+
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+
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+
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+## interface
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OBD-II Pinout (SAE J1962 Connector)
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app-dat/app-dat.md
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- [[metal-detector-dat]] - [[portable-lights-dat]]
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-- [[EDC-dat]]
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+- [[EDC-dat]] - [[OBD-dat]]
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## Domestic Appliances
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battery-dat/battery-dat.md
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- [[battery-packs-dat]] - [[battery-1s-dat]] - [[battery-2s-dat]] - [[battery-3s-dat]] - [[battery-4s-dat]] - - [[battery-5s-dat]] - [[battery-6s-dat]]
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-
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+- [[sensor-voltage-dat]]
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