software/raspi: kivy code dump

software-legacy/.gitignore

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+.pioenvs
+.piolibdeps

software-legacy/lib/readme.txt

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+
+This directory is intended for the project specific (private) libraries.
+PlatformIO will compile them to static libraries and link to executable file.
+
+The source code of each library should be placed in separate directory, like
+"lib/private_lib/[here are source files]".
+
+For example, see how can be organized `Foo` and `Bar` libraries:
+
+|--lib
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |- readme.txt --> THIS FILE
+|- platformio.ini
+|--src
+   |- main.c
+
+Then in `src/main.c` you should use:
+
+#include <Foo.h>
+#include <Bar.h>
+
+// rest H/C/CPP code
+
+PlatformIO will find your libraries automatically, configure preprocessor's
+include paths and build them.
+
+More information about PlatformIO Library Dependency Finder
+- http://docs.platformio.org/page/librarymanager/ldf.html

software-legacy/platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; http://docs.platformio.org/page/projectconf.html
+
+[env:uno]
+platform = atmelavr
+board = uno
+framework = arduino
+monitor_port = /dev/serial/by-id/usb-FTDI_TTL232R_FTF48YOZ-if00-port0
+upload_port = /dev/serial/by-id/usb-FTDI_TTL232R_FTF48YOZ-if00-port0
+targets = upload, monitor
+monitor_baud = 115200
+
+lib_deps =
+    https://github.com/yaacov/ArduinoModbusSlave/archive/03e0182795fee5e7025c14c5817cac835f760eae.zip

software-legacy/src/main.ino

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+#include <ModbusSlave.h>
+#include <EEPROM.h>
+
+// explicitly set stream to use the Serial serialport
+Modbus modbus(Serial, 1, 3); // stream = Serial, slave id = 1, rs485 control-pin = 8
+
+void setup() {
+    pinMode(13, OUTPUT);
+
+    Serial.begin(115200);
+    Serial.print("Initializing! ");
+    for (int i = 0; i < 16; i++) {
+        Serial.print(EEPROM.read(1));
+        Serial.print(" ");
+    }
+    Serial.println();
+
+    modbus.cbVector[CB_READ_INPUT_REGISTERS] = ReadAnalogIn;
+    modbus.begin(115200);
+}
+
+void loop() {
+	modbus.poll();
+
+    digitalWrite(13, (millis() / 200) % 2);
+}
+
+// Handel Read Input Registers (FC=04)
+uint8_t ReadAnalogIn(uint8_t fc, uint16_t address, uint16_t length) {
+	// write registers into the answer buffer
+	for (int i = 0; i < length; i++) {
+		modbus.writeRegisterToBuffer(i, analogRead(address + i));
+	}
+	return STATUS_OK;
+}