Final fixes

.gitignore

@@ -0,0 +1,5 @@
+_autosave*
+*.bak
+export
+*.kicad_pcb-bak
+*rescue.lib

README.md

@@ -17,11 +17,7 @@ Some highlights:
 
 Some KiCad screenshots:
 
-<img src="nixiesp.png"/>
+<img src="/nixiesp.png"/>
-
-Photos:
-
-<img src="photo.jpg"/>
 
 
 ## Install
@@ -29,17 +25,19 @@ Photos:
 Boot ESP8266 with program pin held low and flash MicroPython:
 
 ```bash
-wget http://micropython.org/resources/firmware/esp8266-20170612-v1.9.1.bin
+cd firmware
-esptool.py --port /dev/ttyUSB0 --baud 460800 erase_flash
+make erase
-esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash --flash_size=detect 0 esp8266-20170612-v1.9.1.bin 
+make flash
+
+Reboot ESP8266 and finish with by uploading scripts:
+
+```
+make upload
 ```
 
-Upload main.py and boot.py and adjust network configuration in boot.py accordingly:
+Power cycle the device and via WiFi connect to the device,
-
+network name is MicroPython-XXXXXX and password is micropythoN.
-```bash
+Navigate to http://192.168.4.1 to start the configuration wizard.
-ampy -p /dev/ttyUSB0 put boot.py
-ampy -p /dev/ttyUSB0 put main.py
-```
 
 ## Assembly tips
 
@@ -52,6 +50,9 @@ Once the PCB is milled or etched make sure you clean the 180V rails thoroughly,
 that voltage is high enough to cross gaps of 0.1mm.
 Once that happens it burns a thick dark trace into the fiberglass of PCB and
 it's pretty tricky to clean up.
+The PCB is designed with 0.4mm clearance to be compliant with HV designs.
+This clearance of course assumes that PCB traces are covered.
+Either use solder mask or conformal coating.
 
 Use the bench power supply to gradually power up the device,
 at 9V set current limiter to 0.5A max.

frame.scad

@@ -0,0 +1,34 @@
+PCB_THICKNESS = 1.6;
+EDGE_LENGTH = 54;
+WRAPAROUND = 2;
+
+module thingie() {
+  translate([1, 0, 0]) {
+    difference() {
+      cube([
+        EDGE_LENGTH + 2 * WRAPAROUND,
+        EDGE_LENGTH + 2 * WRAPAROUND*2 + PCB_THICKNESS,
+        9]);
+      translate([EDGE_LENGTH+17+5+2, EDGE_LENGTH+5+6]) {
+        cylinder(10, EDGE_LENGTH+5, EDGE_LENGTH+5, $fn=100);
+      };
+
+      translate([-142,71]) {
+        cylinder(10, 155, 155, $fn=100);
+      };
+
+
+      translate([WRAPAROUND, WRAPAROUND*3,1])  {
+        translate([13, PCB_THICKNESS,0])  {
+          cube([PCB_THICKNESS,EDGE_LENGTH,20]);
+        }
+        cube([EDGE_LENGTH,PCB_THICKNESS,20]);
+      }
+    }
+  }
+}
+
+thingie();
+mirror([1,0,0]) {
+  thingie();
+}

nixiesp-cache.lib

@@ -30,11 +30,11 @@ X VCC 16 -300 550 0 D 50 50 1 1 W N
 ENDDRAW
 ENDDEF
 #
-# BS107
+# BS107-RESCUE-nixiesp
 #
-DEF BS107 Q 0 0 Y Y 1 F N
+DEF BS107-RESCUE-nixiesp Q 0 0 Y Y 1 F N
 F0 "Q" 200 75 50 H V L CNN
-F1 "BS107" 200 0 50 H V L CNN
+F1 "BS107-RESCUE-nixiesp" 200 0 50 H V L CNN
 F2 "TO_SOT_Packages_THT:TO-92_Molded_Narrow" 200 -75 50 H I L CIN
 F3 "" 0 0 50 H I L CNN
 $FPLIST
@@ -338,11 +338,11 @@ X K K 300 0 100 L 40 40 1 1 B
 ENDDRAW
 ENDDEF
 #
-# LM1117-3.3
+# LM1117-3.3-RESCUE-nixiesp
 #
-DEF LM1117-3.3 U 0 30 Y Y 1 F N
+DEF LM1117-3.3-RESCUE-nixiesp U 0 30 Y Y 1 F N
 F0 "U" 100 -250 50 H V C CNN
-F1 "LM1117-3.3" 0 250 50 H V C CNN
+F1 "LM1117-3.3-RESCUE-nixiesp" 0 250 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
@@ -359,11 +359,11 @@ X VO 4 300 0 100 L 50 50 1 1 w N
 ENDDRAW
 ENDDEF
 #
-# LM1117-5.0
+# LM1117-5.0-RESCUE-nixiesp
 #
-DEF LM1117-5.0 U 0 30 Y Y 1 F N
+DEF LM1117-5.0-RESCUE-nixiesp U 0 30 Y Y 1 F N
 F0 "U" 100 -250 50 H V C CNN
-F1 "LM1117-5.0" 0 250 50 H V C CNN
+F1 "LM1117-5.0-RESCUE-nixiesp" 0 250 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST