version -> 0.1.5

include/og3/din.h

@@ -12,7 +12,7 @@ namespace og3 {
 class DIn : public Module {
  public:
   DIn(const char* name_, ModuleSystem* module_system_, uint8_t pin_, const char* description,
-      VariableGroup* vg, bool publish = true);
+      VariableGroup* vg, bool publish = true, bool invert = false);
 
   // Read the dio pin and return isHigh().
   bool read();
@@ -23,6 +23,7 @@ class DIn : public Module {
 
  private:
   const uint8_t m_pin;
+  const bool m_invert;
   BinarySensorVariable m_is_high;
 };
 

include/og3/module.h

@@ -34,7 +34,7 @@ class Module {
   void add_init_fn(const Thunk& thunk);
   void add_start_fn(const Thunk& thunk);
   void add_update_fn(const Thunk& thunk);
-  void add_html_button(String* body, const char* title, const char* url);
+  void add_html_button(String* body, const char* title, const char* url) const;
   unsigned sorted_index() const { return m_sorted_idx; }
 
  protected:

library.json

@@ -1,6 +1,6 @@
 {
     "name": "og3",
-    "version": "0.1.4",
+    "version": "0.1.5",
     "description": "A library for esp projects",
     "keywords": "esp32, esp8266, modules, tasks, mqtt",
     "authors": [

src/din.cpp

@@ -10,15 +10,17 @@
 namespace og3 {
 
 DIn::DIn(const char* name_, ModuleSystem* module_system_, uint8_t pin_, const char* description,
-         VariableGroup* vg, bool publish)
+         VariableGroup* vg, bool publish, bool invert)
     : Module(name_, module_system_),
       m_pin(pin_),
+      m_invert(invert),
       m_is_high(name_, false, description, vg, publish) {
   add_init_fn([this]() { pinMode(m_pin, INPUT); });
 }
 
 bool DIn::read() {
-  const bool is_high = (HIGH == digitalRead(m_pin));
+  const bool pin_is_high = (HIGH == digitalRead(m_pin));
+  const bool is_high = m_invert ? !pin_is_high : pin_is_high;
   if (is_high != m_is_high.value()) {
     log()->debugf("%s -> %s", name(), is_high ? "high" : "low");
   }

src/module.cpp

@@ -19,7 +19,7 @@ void Module::add_init_fn(const Thunk& thunk) { m_module_system->add_init_fn(thun
 void Module::add_start_fn(const Thunk& thunk) { m_module_system->add_start_fn(thunk, this); }
 void Module::add_update_fn(const Thunk& thunk) { m_module_system->add_update_fn(thunk, this); }
 
-void Module::add_html_button(String* body, const char* title, const char* url) {
+void Module::add_html_button(String* body, const char* title, const char* url) const {
   *body += F("<p><form action='");
   *body += url;
   *body += F("' method='get'><button>");