Board-dat/AMP/AMP1017-dat/AMP1017-dat.md
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+
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+# AMP1017-dat
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+
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+https://www.electrodragon.com/product/audio-preamplifier-board-ne5532/
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+
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+
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+## ref
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+
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+- [[NE5532-dat]] - [[LM78xx-dat]]
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+
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+
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+- [[AMP1017]]
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Board-dat/CIC/CIC1031-dat/CIC1031-dat.md
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+
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+# CIC1031-dat
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+
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+
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+refer to page - [[CH340-dat]]
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+
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+https://www.electrodragon.com/product/10pcs-ch340e-ch340g-usb-ttl-uart-ics-wch-ch340e/
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+
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+
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+## ref
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+
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+- [[CIC1031-dat]] - [[CIC1029-dat]] - [[CIC1030-dat]]
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+
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+
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+- [[CH340]]
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+
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+
Board-dat/CIC/CIC1057-dat/CIC1057-dat.md
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@@ -3,8 +3,10 @@
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4 4
STC15F104W SOP-8 MCU
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-
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+https://www.electrodragon.com/product/5pcs-stc-stc15f104w-sop-8-mcu/
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8 8
## ref
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+- [[STC-dat]] - [[MCU-dat]]
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+
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- [[CIC1057]]
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Board-dat/CIC/CIC1067-dat/CIC1067-dat.md
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+
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+# CIC1067-dat
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+
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+https://www.electrodragon.com/product/2pcs-esp-psram64h-chip-64-mbit-serial-pseudo-sram/
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+
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+## Specs
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+
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+| specs | info |
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+| ----------------------- | ----------------------------- |
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+| Clock Frequency | 133MHz |
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+| Memory Format | PSRAM |
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+| Memory Interface | SPI |
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+| Memory Size | 64Mb (8M x 8) |
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+| Memory Type | Volatile |
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+| Mounting Type | Surface Mount |
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+| Operating Temperature | -40°C ~ 85°C |
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+| Package / Case | 8-SOIC (0.154″, 3.90mm Width) |
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+| Supplier Device Package | 8-SOIC |
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+| Technology | PSRAM (Pseudo SRAM) |
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+| Voltage – Supply | 2.7V ~ 3.6V |
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+
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+
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+
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+## ref
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+
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+- [[PSRAM-dat]]
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Chip-cn-dat/WCH-dat/CH340-dat/CH340-DAT.md
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@@ -8,6 +8,20 @@
8 8
- USB device should be found as: USB-SERIAL CH340K (COM161)
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10 10
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+## DS
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+
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+| model | link | footprint | note |
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+| ------ | --------------- | --------- | ------------------------ |
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+| CH340G | [[CIC1030-dat]] | SOP-16 | |
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+| CH340C | [[CIC1031-dat]] | SOP-16 | no need external crystal |
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+| CH340B | | SOP-16 | |
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+| CH340K | | ESSOP-10 | |
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+| CH340E | [[CIC1029-dat]] | MSOP-10 | |
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+
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+
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+- [[WCH-Jiangsu-Qin-Heng-CH340.pdf]]
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+
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+
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## driver
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13 27
- [[CH340SER.zip]]
Chip-cn-dat/WCH-dat/CH340-dat/WCH-Jiangsu-Qin-Heng-CH340.pdf
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Chip-dat/FairChild-dat/FairChild-dat.md
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+
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+# FairChild-dat
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+
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+- [[LM78xx-dat]]
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+
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+
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+## ref
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+
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+- [[chip-dat]]
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Chip-dat/FairChild-dat/LM78xx-dat/2024-10-27-14-32-28.png
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Chip-dat/FairChild-dat/LM78xx-dat/LM78xx-dat.md
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+
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+# LM78xx-dat
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+
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+DS - https://www.mouser.com/datasheet/2/149/LM7812-461970.pdf?srsltid=AfmBOooQ_nzJcPlu-FnTlI5jU5ln2RB_RPVLN0U-ogi1nRWMWqJ3qpAT
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+
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+WIKI - https://en.wikipedia.org/wiki/78xx
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+
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+
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+## SCH
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+
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+![](2024-10-27-14-32-28.png)
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Chip-dat/STC-dat/2024-10-27-13-36-15.png
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Chip-dat/STC-dat/STC-STC15.pdf
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Chip-dat/STC-dat/STC-dat.md
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+
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+# STC-dat.md
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+
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+- [[CIC1057-dat]] - STC15F104W SOP-8 MCU == 1.2.STC15F100W系列单片机总体介绍(B版大批量现货供应中)
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+
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+- [[STC-STC15.pdf]] (very large file, better download to view)
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+
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+## STC15W100, STC15F100 series
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+
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+![](2024-10-27-13-36-15.png)
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+
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+
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+## ref
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+
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+- [[MCU-dat]]
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Chip-dat/TI-dat/NE5532-dat/2024-10-27-14-25-55.png
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Chip-dat/TI-dat/NE5532-dat/2024-10-27-14-27-33.png
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Chip-dat/TI-dat/NE5532-dat/NE5532-dat.md
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+
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+# NE5532-dat
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+
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+DS - https://www.ti.com/lit/ds/symlink/ne5532.pdf
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+
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+NE5532x, SA5532x Dual Low-Noise Operational Amplifiers
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+
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+## boards
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+
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+- [[AMP1017-dat]]
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+
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+
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+## appliction amplifier
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+
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+VCC+ Supply voltage: 5 ~ 15 V
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+
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+![](2024-10-27-14-25-55.png)d
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+
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+
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+## audio amplifier SCH
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+
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+![](2024-10-27-14-27-33.png)
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+
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+
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+## ref
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+
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+- [[TI-dat]]
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Chip-dat/TI-dat/NE555-DAT/NE555-DAT.md
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6 6
https://www.ti.com/lit/ds/symlink/ne555.pdf
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8 8
T = 1.1C = 1.1 * 500 000 * 0.000047 = 25.85 seconds
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+
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+
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+## ref
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+
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+- [[pulse-generator-dat]]
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Chip-dat/chip-dat.md
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# chip-dat
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-- [[chip-cn-dat]]
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-
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- [[bosch-dat]]
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- [[allegro-dat]]: [[ACS712-dat]]
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- [[microchip-dat]] - [[avr-dat]]
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+[[MCU-dat]] - [[STC-dat]] - [[nuvonton-dat]]
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+
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+- [[fairchild-dat]]
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+
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+
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+
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+
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## ref
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+- [[chip-cn-dat]]
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+
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- [[chip]] - [[chip-cn]]
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- [[board-dat]]
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SDK-dat/microPython/micropython-dat.md
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* Now can upload new sketch into it.
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+## hardware flash size
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+
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+Since the memory of STM32F401 is small, you need to install flash to simulate a USB flash drive. Recommended flash: W25Q32JVSSIQ 32MBit
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+
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+The memory of STM32F411 is twice as large, so you don’t need an external flash to simulate a USB flash drive
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+
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+Open the USB flash drive, edit the main.py file, click Save, reset the MCU and you can execute the program.
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+
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+
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+
39 49
## compatible boards
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- [[STM32F401-dat]]
Tech-dat/MCU-dat/mcu-dat.md
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- [[AVR-dat]]
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+- [[STC-dat]]
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+
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+- [[nuvoton-dat]]
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## Common-used MCU
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Tech-dat/signal-dat/pulse-generator-dat/pulse-dat.md
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-
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-# pulse-dat.md
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-
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-
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-In the graphic below, the green lines represent a regular time period. This duration or period is the inverse of the PWM frequency. In other words, with Arduino's PWM frequency at about 500Hz, the green lines would measure 2 milliseconds each.
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-
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-A call to analogWrite() is on a scale of 0 - 255, such that analogWrite(255) requests a 100% duty cycle (always on),
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-
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-and analogWrite(127) is a 50% duty cycle (on half the time) for example.
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-
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-![](2024-10-13-16-54-25.png)
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-
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-- ref - https://docs.arduino.cc/learn/microcontrollers/analog-output/
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-
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-
Tech-dat/signal-dat/pulse-generator-dat/pulse-generator-dat.md
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# pulse-generator-dat
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+## a pulse
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+
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+In the graphic below, the green lines represent a regular time period. This duration or period is the inverse of the PWM frequency. In other words, with Arduino's PWM frequency at about 500Hz, the green lines would measure 2 milliseconds each.
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+
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+A call to analogWrite() is on a scale of 0 - 255, such that analogWrite(255) requests a 100% duty cycle (always on),
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+
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+and analogWrite(127) is a 50% duty cycle (on half the time) for example.
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+
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+![](2024-10-13-16-54-25.png)
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+
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+- ref - https://docs.arduino.cc/learn/microcontrollers/analog-output/
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-- [[NE555-dat]]
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-- [[PWM-dat]]
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9 18
## project
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-- [[MPC1127]]
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0
+- [[MPC1127]]
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+
2
+## ref
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+
4
+- [[NE555-dat]]
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+
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+- [[PWM-dat]]