diff --git a/bin/version.sh b/bin/version.sh
index 58db3c51..11037db3 100644
--- a/bin/version.sh
+++ b/bin/version.sh
@@ -1,3 +1,3 @@
 
 
-export VERSION=0.7.9
\ No newline at end of file
+export VERSION=0.7.10
\ No newline at end of file
diff --git a/docs/software/TODO.md b/docs/software/TODO.md
index b9ad6eae..e8355bcf 100644
--- a/docs/software/TODO.md
+++ b/docs/software/TODO.md
@@ -2,7 +2,7 @@
 
 You probably don't care about this section - skip to the next one.
 
-- implement first cut of router mode: preferentially handle flooding, and change sleep and GPS behaviors
+- implement first cut of router mode: preferentially handle flooding, and change sleep and GPS behaviors (plan for geofence mode and battery save mode)
 - NRF52 BLE support
 
 # Medium priority
diff --git a/docs/software/mesh-alg.md b/docs/software/mesh-alg.md
index 2a2e4dd2..f9427cd2 100644
--- a/docs/software/mesh-alg.md
+++ b/docs/software/mesh-alg.md
@@ -32,8 +32,8 @@ optimizations / low priority:
 
 - read this [this](http://pages.cs.wisc.edu/~suman/pubs/nadv-mobihoc05.pdf) paper and others and make our naive flood routing less naive
 - read @cyclomies long email with good ideas on optimizations and reply
-- Remove NodeNum assignment algorithm (now that we use 4 byte node nums)
-- make android app warn if firmware is too old or too new to talk to
+- DONE Remove NodeNum assignment algorithm (now that we use 4 byte node nums)
+- DONE make android app warn if firmware is too old or too new to talk to
 - change nodenums and packetids in protobuf to be fixed32
 - low priority: think more careful about reliable retransmit intervals
 - make ReliableRouter.pending threadsafe
diff --git a/platformio.ini b/platformio.ini
index bad647bf..f54ab582 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -23,6 +23,8 @@ default_envs = tbeam ; Note: the github actions CI test build can't yet build NR
 
 [env]
 
+framework = arduino
+
 ; customize the partition table
 ; http://docs.platformio.org/en/latest/platforms/espressif32.html#partition-tables
 board_build.partitions = partition-table.csv
@@ -78,7 +80,6 @@ lib_deps =
 ; Common settings for ESP targes, mixin with extends = esp32_base
 [esp32_base]
 platform = espressif32
-framework = arduino
 src_filter = 
   ${env.src_filter} -<nrf52/>
 upload_speed = 921600
@@ -133,7 +134,6 @@ build_flags =
 ; For more details see my post in the forum.
 [env:cubecellplus]
 platform = https://github.com/HelTecAutomation/platform-asrmicro650x.git ; we use top-of-tree because stable version has too many bugs - asrmicro650x
-framework = arduino
 board = cubecell_board_plus
 ; FIXME, bug in cubecell arduino - they are supposed to set ARDUINO
 build_flags = ${env.build_flags} -DARDUINO=100 -Isrc/cubecell
@@ -143,7 +143,6 @@ src_filter =
 ; Common settings for NRF52 based targets
 [nrf52_base]
 platform = nordicnrf52
-framework = arduino
 debug_tool = jlink
 build_type = debug ; I'm debugging with ICE a lot now
 ; note: liboberon provides the AES256 implementation for NRF52 (though not using the hardware acceleration of the NRF52840 - FIXME)
diff --git a/src/main.cpp b/src/main.cpp
index 56856f6e..89704e6e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -37,8 +37,8 @@
 #include "main.h"
 #include "screen.h"
 #include "sleep.h"
-#include <Wire.h>
 #include <OneButton.h>
+#include <Wire.h>
 // #include <driver/rtc_io.h>
 
 #ifndef NO_ESP32
@@ -134,15 +134,17 @@ Periodic ledPeriodic(ledBlinker);
 
 // Prepare for button presses
 #ifdef BUTTON_PIN
-    OneButton userButton;
+OneButton userButton;
 #endif
 #ifdef BUTTON_PIN_ALT
-    OneButton userButtonAlt;
+OneButton userButtonAlt;
 #endif
-void userButtonPressed() {
+void userButtonPressed()
+{
     powerFSM.trigger(EVENT_PRESS);
 }
-void userButtonPressedLong(){
+void userButtonPressedLong()
+{
     screen.adjustBrightness();
 }
 
@@ -229,6 +231,10 @@ void setup()
         ssd1306_found = false; // forget we even have the hardware
 
     esp32Setup();
+#endif
+
+#ifdef TBEAM_V10
+    // Currently only the tbeam has a PMU
     power = new Power();
     power->setup();
     power->setStatusHandler(powerStatus);
@@ -306,7 +312,6 @@ void setup()
     // This must be _after_ service.init because we need our preferences loaded from flash to have proper timeout values
     PowerFSM_setup(); // we will transition to ON in a couple of seconds, FIXME, only do this for cold boots, not waking from SDS
 
-
     // setBluetoothEnable(false); we now don't start bluetooth until we enter the proper state
     setCPUFast(false); // 80MHz is fine for our slow peripherals
 }
@@ -352,6 +357,8 @@ void loop()
 
 #ifndef NO_ESP32
     esp32Loop();
+#endif
+#ifdef TBEAM_V10
     power->loop();
 #endif
 
@@ -379,7 +386,7 @@ void loop()
 
     // Update the screen last, after we've figured out what to show.
     screen.debug()->setChannelNameStatus(channelSettings.name);
-    //screen.debug()->setPowerStatus(powerStatus);
+    // screen.debug()->setPowerStatus(powerStatus);
 
     // No GPS lock yet, let the OS put the main CPU in low power mode for 100ms (or until another interrupt comes in)
     // i.e. don't just keep spinning in loop as fast as we can.
diff --git a/src/screen.cpp b/src/screen.cpp
index 74f0065d..00c361b2 100644
--- a/src/screen.cpp
+++ b/src/screen.cpp
@@ -55,8 +55,13 @@ static FrameCallback normalFrames[MAX_NUM_NODES + NUM_EXTRA_FRAMES];
 static uint32_t targetFramerate = IDLE_FRAMERATE;
 static char btPIN[16] = "888888";
 
-uint8_t imgBattery[16] = { 0xFF, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0xE7, 0x3C };
+uint8_t imgBattery[16] = {0xFF, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0xE7, 0x3C};
+
+// if defined a pixel will blink to show redraws
+// #define SHOW_REDRAWS
+#ifdef SHOW_REDRAWS
 static bool heartbeat = false;
+#endif
 
 static void drawBootScreen(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
 {
@@ -177,10 +182,10 @@ static void drawColumns(OLEDDisplay *display, int16_t x, int16_t y, const char *
 #endif
 
 // Draw power bars or a charging indicator on an image of a battery, determined by battery charge voltage or percentage.
-static void drawBattery(OLEDDisplay *display, int16_t x, int16_t y, uint8_t *imgBuffer, const PowerStatus *powerStatus) 
+static void drawBattery(OLEDDisplay *display, int16_t x, int16_t y, uint8_t *imgBuffer, const PowerStatus *powerStatus)
 {
-    static const uint8_t powerBar[3] = { 0x81, 0xBD, 0xBD };
-    static const uint8_t lightning[8] = { 0xA1, 0xA1, 0xA5, 0xAD, 0xB5, 0xA5, 0x85, 0x85 };
+    static const uint8_t powerBar[3] = {0x81, 0xBD, 0xBD};
+    static const uint8_t lightning[8] = {0xA1, 0xA1, 0xA5, 0xAD, 0xB5, 0xA5, 0x85, 0x85};
     // Clear the bar area on the battery image
     for (int i = 1; i < 14; i++) {
         imgBuffer[i] = 0x81;
@@ -191,7 +196,7 @@ static void drawBattery(OLEDDisplay *display, int16_t x, int16_t y, uint8_t *img
         // If not charging, Draw power bars
     } else {
         for (int i = 0; i < 4; i++) {
-            if(powerStatus->getBatteryChargePercent() >= 25 * i) 
+            if (powerStatus->getBatteryChargePercent() >= 25 * i)
                 memcpy(imgBuffer + 1 + (i * 3), powerBar, 3);
         }
     }
@@ -199,7 +204,7 @@ static void drawBattery(OLEDDisplay *display, int16_t x, int16_t y, uint8_t *img
 }
 
 // Draw nodes status
-static void drawNodes(OLEDDisplay *display, int16_t x, int16_t y, NodeStatus *nodeStatus) 
+static void drawNodes(OLEDDisplay *display, int16_t x, int16_t y, NodeStatus *nodeStatus)
 {
     char usersString[20];
     sprintf(usersString, "%d/%d", nodeStatus->getNumOnline(), nodeStatus->getNumTotal());
@@ -765,10 +770,12 @@ void DebugInfo::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16
 
     display->drawLogBuffer(x, y + (FONT_HEIGHT * 2));
 
-    /* Display a heartbeat pixel that blinks every time the frame is redrawn
-    if(heartbeat) display->setPixel(0, 0);
+    /* Display a heartbeat pixel that blinks every time the frame is redrawn */
+#ifdef SHOW_REDRAWS
+    if (heartbeat)
+        display->setPixel(0, 0);
     heartbeat = !heartbeat;
-    */
+#endif
 }
 
 // adjust Brightness cycle trough 1 to 254 as long as attachDuringLongPress is true
@@ -786,13 +793,13 @@ void Screen::adjustBrightness()
     dispdev.setBrightness(brightness);
 }
 
-int Screen::handleStatusUpdate(const Status *arg) {
+int Screen::handleStatusUpdate(const Status *arg)
+{
     DEBUG_MSG("Screen got status update %d\n", arg->getStatusType());
-    switch(arg->getStatusType())
-    {
-        case STATUS_TYPE_NODE:
-            setFrames();
-            break;
+    switch (arg->getStatusType()) {
+    case STATUS_TYPE_NODE:
+        setFrames();
+        break;
     }
     setPeriod(1); // Update the screen right away
     return 0;