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--- composants:rpi_proxi_sensor [2020/06/22 15:51] – created mh
+++ composants:rpi_proxi_sensor [2025/06/02 21:23] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Raspberry Pi & Infrared Proximity Sensor ======
+Work in progress
+===== General =====
+==== Components ====
+  *[[composants:2Y0A21|Sharp 2Y0A21F Infrared sensor]]
+  *[[composants:mcp3008|MCP3008 ADC]]
+  *Raspberry Pi - any model
+  *Breadboard, jumpers, etc.
+==== Wiring ====
+{{composants:sharp_mcp_wiring.png?400}}
+<WRAP 50%>
+|^  RPi Pin #^   ^Role  ^  MCP3008 Pin #^  ^Role  |
+|  1|    |3.3V|  16|  |VDD  |
+|  1|    |3.3V  |  15|  |VREF  |
+|  6|    |GND  |  14|  |AGND  |
+|  19|    |GPIO 10 (MOSI)  |  11|  |DIN  |
+|  21|    |GPIO 9 (MISO)  |  12|  |DOUT  |
+|  23|    |GPIO 11 (SLCK)  |  13|  |CLK  |
+|  24|    |GPIO 8 (CE0)  |  10|  |CS/SHDN  |
+|  6|    |GND  |  9|  |DGND  |
+</WRAP>
+There are two different wirings, this one is for hardware SPI. Another one is used for software SPI
+{{composants:mcp3008pin.jpg?250}}
+===== Steps =====
+  *Installed raspbian
+  *Activated SPI in raspi-config
+  *wired a MCP3008 and a sharp IR module to the GPIO pins
+  *followed tuto on python but did not get data from module (read 0.00)
+  *rewired to software SPI (needs documenting)
+  *installed rust in tty with lightdm stopped
+<code bash>
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+</code>
+  *reboot to activate rust
+  *
 ===== Ressources =====
   *[[https://tutorials-raspberrypi.com/infrared-distance-measurement-with-the-raspberry-pi-sharp-gp2y0a02yk0f/|Blog post Tutorial]]