Board-dat/SCM/SCM1030-dat/SCM1030-dat.md
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@@ -83,7 +83,7 @@ ESP-32CAM is packaged in DIP and can be directly plugged into the backplane for
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![](2024-12-28-17-36-00.png)
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-- [[SD-dat]] - [[OV2640-dat]]
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+- [[SD-dat]] - [[OV2640-dat]] - onboard [[PSRAM-dat]] from [[memory-dat]]
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LEDs - [[LED-dat]]
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@@ -92,7 +92,7 @@ LEDs - [[LED-dat]]
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| flashing LED | 4 |
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| common indicator | 33 |
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-
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+to get free pins, remove card in [[SD-dat]]
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Chip-dat/bosch-dat/BME280-dat/BME280-dat.md
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@@ -2,7 +2,8 @@
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# BME280-dat
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-BME280 Features
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+## BME280 Features
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+
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- Package 2.5 mm x 2.5 mm x 0.93 mm metal lid LGA
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- Digital interface I2C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)
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- Supply voltage VDD main supply voltage range: 1.71 V to 3.6 V
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@@ -17,4 +18,7 @@ Bosch has stepped up their game with their new BMP280 sensor, an environmental s
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This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy
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-The BME280 is the next-generation of sensors from Bosch, and is the upgrade to the BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications, but can use either I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
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\ No newline at end of file
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+The BME280 is the next-generation of sensors from Bosch, and is the upgrade to the BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications, but can use either I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
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Tech-dat/memory-dat/PSRAM-dat/2024-12-28-17-48-24.png
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Binary files /dev/null and b/Tech-dat/memory-dat/PSRAM-dat/2024-12-28-17-48-24.png differ
Tech-dat/memory-dat/PSRAM-dat/PSRAM-dat.md
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@@ -0,0 +1,20 @@
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+
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+# PSRAM-dat
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+
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+
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+## hook to ESP32
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+
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+- [[SCM1030-dat]]
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+
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+![](2024-12-28-17-48-24.png)
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+
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+| ESP32 | PSRAM | note |
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+| ----- | ----- | ---- |
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+| IO16 | CS | |
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+| SD0 | SIO1 | |
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+| SD1 | SIO0 | |
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+| SD2 | SIO1 | |
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+| SD3 | SIO2 | |
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+| CLK | SCLK | |
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+
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+- [[PIR-dat]]
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\ No newline at end of file
Tech-dat/memory-dat/sd-dat/sd-dat.md
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@@ -22,7 +22,7 @@ https://github.com/espressif/arduino-esp32/tree/master/libraries/SD
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## ESP32
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-Dat 0~4
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+Dat 0~4 used in [[SCAM1030-dat]]
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MicroSD Card Connections
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