5 files changed, 113 insertions, 0 deletions

diff --git a/linz/oekofen_thermo/.gitignore b/linz/oekofen_thermo/.gitignore
new file mode 100644
index 0000000..89cc49c
--- /dev/null
+++ b/linz/oekofen_thermo/.gitignore
@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
diff --git a/linz/oekofen_thermo/platformio.ini b/linz/oekofen_thermo/platformio.ini
new file mode 100644
index 0000000..2c7b00e
--- /dev/null
+++ b/linz/oekofen_thermo/platformio.ini
@@ -0,0 +1,16 @@
+; 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
+; https://docs.platformio.org/page/projectconf.html
+
+[env:d1_mini]
+platform = espressif8266
+board = d1_mini
+framework = arduino
+monitor_speed = 115200
+upload_speed = 115200
diff --git a/linz/oekofen_thermo/src/MCP42010.cpp b/linz/oekofen_thermo/src/MCP42010.cpp
new file mode 100644
index 0000000..aa6de2b
--- /dev/null
+++ b/linz/oekofen_thermo/src/MCP42010.cpp
@@ -0,0 +1,21 @@
+#include "MCP42010.h"
+
+MCP42010::MCP42010(uint8_t ss_pin)
+  : _ss_pin(ss_pin), _spiset(10000000, MSBFIRST, SPI_MODE0)
+{}
+
+void MCP42010::setup()
+{
+  pinMode(_ss_pin, OUTPUT);
+  SPI.begin();
+}
+
+void MCP42010::setPot(MCP42010::Poti pot, uint8_t value)
+{
+  SPI.beginTransaction(_spiset);
+  digitalWrite(_ss_pin, LOW);
+  SPI.transfer(0b00010000 | pot);
+  SPI.transfer(value);
+  digitalWrite(_ss_pin, HIGH);
+  SPI.endTransaction();
+}
diff --git a/linz/oekofen_thermo/src/MCP42010.h b/linz/oekofen_thermo/src/MCP42010.h
new file mode 100644
index 0000000..9d06e7d
--- /dev/null
+++ b/linz/oekofen_thermo/src/MCP42010.h
@@ -0,0 +1,25 @@
+#ifndef MCP42010_h
+#define MCP42010_h
+
+#include <Arduino.h>
+#include <SPI.h>
+
+class MCP42010
+{
+  public:
+    enum Poti
+    {
+      P0 = 0b01,
+      P1 = 0b10,
+    };
+
+    MCP42010(uint8_t ss_pin);
+    void setup();
+    void setPot(Poti pot, uint8_t value);
+
+  private:
+    uint8_t _ss_pin;
+    SPISettings _spiset;
+};
+
+#endif
\ No newline at end of file
diff --git a/linz/oekofen_thermo/src/main.cpp b/linz/oekofen_thermo/src/main.cpp
new file mode 100644
index 0000000..5713a0b
--- /dev/null
+++ b/linz/oekofen_thermo/src/main.cpp
@@ -0,0 +1,46 @@
+#include <Arduino.h>
+#include <WiFiManager.h>
+#include <ESP8266WebServer.h>
+
+#include "MCP42010.h"
+
+ESP8266WebServer http_service(80);
+MCP42010 msp42010(D8);
+
+void setup() {
+  Serial.begin(115200);
+  msp42010.setup();
+
+  WiFiManager wifiManager;
+  wifiManager.setConfigPortalTimeout(600);
+  Serial.printf_P(PSTR("Setting up WiFi\n"));
+  WiFi.hostname("oekofen");
+  if (!wifiManager.autoConnect("oekofen-thermo"))
+  {
+    Serial.printf_P(PSTR("Failed to connect and hit timeout\n"));
+    delay(5000);
+    ESP.restart();
+  }
+
+  http_service.on("/", HTTP_GET, []() {
+    uint8_t val = random(0, 255);
+    //msp42010.setPot(MCP42010::P0, val);
+    msp42010.setPot(MCP42010::P1, val);
+    http_service.send(200, PSTR("text/plain"), String(val));
+  });
+  http_service.begin();
+
+  Serial.println("Setup done");
+}
+
+void loop() {
+  //http_service.handleClient();
+  if (Serial.available() > 0)
+  {
+    while (Serial.read() >= 0) {}
+    uint8_t val = random(0, 255);
+    //msp42010.setPot(MCP42010::P0, val);
+    msp42010.setPot(MCP42010::P1, val);
+    Serial.println(val, DEC);
+  }
+}