Fix spurious button presses on some T-Echos (#6590)

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/graphics/niche/Inputs/TwoButton.cpp

@@ -181,7 +181,7 @@ void TwoButton::isrSecondary()
 void TwoButton::startThread()
 {
     if (!OSThread::enabled) {
-        OSThread::setInterval(50);
+        OSThread::setInterval(10);
         OSThread::enabled = true;
     }
 }

src/mesh/RadioLibInterface.cpp

@@ -210,6 +210,14 @@ bool RadioLibInterface::canSleep()
     return res;
 }
 
+/** Allow other firmware components to ask whether we are currently sending a packet
+Initially implemented to protect T-Echo's capacitive touch button from spurious presses during tx
+*/
+bool RadioLibInterface::isSending()
+{
+    return sendingPacket != NULL;
+}
+
 /** Attempt to cancel a previously sent packet.  Returns true if a packet was found we could cancel */
 bool RadioLibInterface::cancelSending(NodeNum from, PacketId id)
 {

src/mesh/RadioLibInterface.h

@@ -132,6 +132,11 @@ class RadioLibInterface : public RadioInterface, protected concurrency::Notified
      */
     virtual bool isActivelyReceiving() = 0;
 
+    /** Are we are currently sending a packet?
+     * This method is public, intending to expose this information to other firmware components
+     */
+    virtual bool isSending();
+
     /** Attempt to cancel a previously sent packet.  Returns true if a packet was found we could cancel */
     virtual bool cancelSending(NodeNum from, PacketId id) override;