basic nodemcu stuff in lua/

.gitignore

@@ -0,0 +1,7 @@
+#*#
+.#*
+*~
+
+nodemcu-firmware-esp32/
+nodemcu-firmware/
+ref/

_.org

@@ -0,0 +1,29 @@
+
+
+
+
+
+
+* old stuff??!
+
+-- sdcard
+tf_cs=4    -- CS=GPIO4
+tf_mosi=23 -- DI=GPIO23
+tf_sclk=18 -- SCLK=GPIO18
+tf_miso=19 -- DO=GPIO19
+
+
+
+
+-- buttons (active low)
+pin_btn_a=39
+pin_btn_b=38
+pin_btn_c=37
+
+-- usb console
+pin_console_rx=3
+pin_console_tx=1
+
+-- Speaker output 
+pin_spkr=25
+

lua/Makefile

@@ -0,0 +1,2 @@
+upload: init.lua
+	luatool.py --ip 192.168.1.174:2323 -vd -f init.lua

lua/adc.lua

@@ -0,0 +1,25 @@
+
+function init()
+   adc.setup(adc.ADC1, 0, adc.ATTEN_11db)
+   adc.setwidth(adc.ADC1, 12)
+end
+
+
+
+
+function read(ch)
+   adc.setwidth(adc.ADC1, 12)
+   read = adc.read(adc.ADC1, ch)
+end
+
+
+
+function readall()
+   for i=0, 8 do
+      print("ADC1 read ch", i, "returned:", read(i));
+   end
+end
+
+      
+
+

lua/display.lua

@@ -0,0 +1 @@
+dofile('lcd.lua')

lua/init.lua

@@ -0,0 +1,12 @@
+spimaster = spi.master(spi.HSPI, {sclk = 18, mosi = 23, miso = 19}) -- HSPI (LCD/TF Card)
+
+function tryfile(f)
+   if file.exists(f) then s,err=pcall(function() dofile(f) end) if not s then print(err) end
+   else print('ERR: "'..f..'" does not exist...') end
+end
+
+tryfile('display.lua')
+tryfile('wifi.lua')
+
+function ls() print(sjson.encode(file.list())) end
+

lua/lcd.lua

@@ -0,0 +1,21 @@
+-- lcd
+-- MOSI=GPIO23
+-- SCK=GPIO18
+-- CS=GPIO14
+-- #RST=GPIO33
+-- R/S=GPIO27
+-- BL=GPIO32
+
+-- enable backlight
+gpio.config({gpio=32, dir=gpio.OUT, opendrain=0, pull=gpio.FLOATING})
+gpio.write(32, 1)		
+
+disp=ucg.ili9341_18x240x320_hw_spi(spimaster, 14, 27, 33)
+disp:begin(ucg.FONT_MODE_TRANSPARENT)
+disp:clearScreen()
+disp:setFont(ucg.font_ncenR12_tr);
+disp:setColor(255, 255, 255);
+disp:setColor(1, 255, 0,0);
+disp:setPrintPos(0, 25)
+disp:print("Hello World!")
+

lua/print.lua

@@ -0,0 +1,4 @@
+
+function table_print(t)
+   return sjson.encode(t)
+end

lua/telnet.lua

@@ -0,0 +1,50 @@
+-- implement:
+-- quit/ctrl-d disconnect
+-- security?????
+-- multiclient?
+-- ssh????
+-- environment??????????
+
+
+-- a simple telnet server
+
+-- restart server if needed
+if telnet_srv ~= nil then
+    telnet_srv:close()
+end
+telnet_srv = net.createServer(net.TCP, 180)
+
+telnet_srv:listen(23, function(socket)
+    local fifo = {}
+    local fifo_drained = true
+
+    local function sender(c)
+        if #fifo > 0 then
+            c:send(table.remove(fifo, 1))
+        else
+            fifo_drained = true
+        end
+    end
+
+    local function s_output(str)
+        table.insert(fifo, str)
+        if socket ~= nil and fifo_drained then
+            fifo_drained = false
+            sender(socket)
+        end
+    end
+
+    node.output(s_output, 1)   -- re-direct output to function s_ouput.
+
+    socket:on("receive", function(c, l)
+        node.input(l)           -- works like pcall(loadstring(l)) but support multiple separate line
+    end)
+    socket:on("disconnection", function(c)
+        node.output(nil)        -- un-regist the redirect output function, output goes to serial
+    end)
+    socket:on("sent", sender)
+
+    print("Welcome to NodeMCU world.")
+end)
+
+print("Telnet server running...")

lua/wifi.lua

@@ -0,0 +1,48 @@
+--local M, module = {}, ...
+--_G[module] = M
+
+
+hostname="doi-kontrol-m5core1"
+
+--function M.init()
+function sta_init()
+   --wifi.mode(wifi.STATION, true)
+   wifi.sta.on("start", function(ev, a) print("NodeMCU WiFi Start") end)
+   wifi.sta.on("start", function(ev, a) print("NodeMCU WiFi Stop") end)
+   wifi.sta.on("connected", function(ev, a) print("NodeMCU wifi connected! ssid:", a.ssid, "bssid:", a.bssid,
+					       "channel:", a.channel, "auth:", a.auth) end)
+   wifi.sta.on("disconnected", function(ev, a) print("NodeMCU wifi disconnected! ssid:", a.ssid, "bssid:", a.bssid,
+						  "reason:", a.reason) end)
+   wifi.sta.on("authmode_changed", function(ev, a) print("NodeMCU authmode_changed! old_mode:", a.old_mode,
+							 "new_mode:", new_mode) end)
+   wifi.sta.on("got_ip", function(ev, info)
+		  dofile('telnet.lua') -- TKTK TODO XXX security risk lol
+		  print("NodeMCU got_ip! ip:", info.ip, "netmask", info.netmask,
+			"gw", info.gw) end)
+   wifi.start()
+   wifi.sta.sethostname("doi-kontrol-m5core1")
+   wifi.sta.config({ssid="departmentofinter.net", pwd="baguette2175bagel", auto=true}, true)
+   print("wifi_init done")
+end
+
+sta_list = [
+   {ssid="departmentofinter.net", pwd="baguette2175bagel", auto=true}
+	   ]
+
+function staionap_init()
+   wifi.mode(wifi.STATIONAP, true)
+   wifi.sta.config({ssid="departmentofinter.net", pwd="baguette2175bagel", auto=true})
+
+   wifi.ap.config({ssid="cyberkontrol", pwd="baguette2175bagel", auth=wifi.AUTH_WPA2_PSK,
+		   channel=11, hidden=false, max=4, becaon=100}, true)
+
+   wifi.ap.setip({ip=192.168.0.1, netmask=255.255.255.0, gateway=192.168.0.1, dns=1.1.1.1})
+   wifi.ap.sethostname(hostname)
+end
+
+
+init()
+
+return init
+
+