MCH2022 badge?
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Content import time import urequests import ugfx import wifi import machine #to get the reset cause import badge #to set splashscreen and wait for eink display import deepsleep #deepsleep in the main routine import appglue #to return home import dialogs #to query the user for the url ################################# ## Helper functions and config ## ################################# #don't show refesh message when successfull, to save refreshs/energy SHOW_WIFI_MESSAGES = False BATTERYBAR_HEIGHT = 4 #set 0 tol disable batterybar MENUTEXT = """[A] Set URL [B] Return to home [Start] start display routine [Select] Select font Font: """ OWNNAME = "infoscreen" SLEEPTIME = 8*60*60 #somehow doesn't work? #due to the weird callback-structure, setters must return to the main screen on their own def get_font(): return badge.nvs_get_str(OWNNAME,"font","DejaVuSans20") def set_font(font): badge.nvs_set_str(OWNNAME,"font",font) mainmenu() def get_url(): return badge.nvs_get_str(OWNNAME,"url","http://voidman.at/cal/cal.php?name=oeh_public") def set_url(url): badge.nvs_set_str(OWNNAME,"url",url) mainmenu() def wait_wifi(): #part of every 2nd app, display "still connecting to wifi anyways" if(SHOW_WIFI_MESSAGES): ugfx.clear(ugfx.BLACK) ugfx.flush() ugfx.string(50, 25, "STILL", "Roboto_BlackItalic24", ugfx.WHITE) ugfx.string(30, 50, "Connecting to wifi", "PermanentMarker22", ugfx.WHITE) le = ugfx.get_string_width("Connecting to wifi", "PermanentMarker22") ugfx.line(30, 72, 30 + 14 + le, 72, ugfx.WHITE) ugfx.string(140, 75, "Anyway", "Roboto_BlackItalic24", ugfx.WHITE) ugfx.flush() #slower than default to save energy while not wifi.sta_if.isconnected(): time.sleep(0.5) def show(newtext): #display as much of \n separated text in the default font as possible font = get_font() fontheight = int(font[-2:]) #the last 2 digits of a font name give its height lines = int(ugfx.height()/fontheight) #the number of lines is floor(displayheight/fontheight) firstN = newtext.split("\n")[:lines] ugfx.clear(ugfx.WHITE) ugfx.flush() i=0 #line counter for line in firstN: ypos = 1 + i * fontheight #ypos 0 is invalid somehow? ugfx.string(1,ypos,line, get_font(), ugfx.BLACK) i+=1 # code to draw batterybar, see https://github.com/SHA2017-badge/micropython-esp32/blob/master/esp32/modules/splash.py and easydraw.py if(BATTERYBAR_HEIGHT > 0): vMin = badge.nvs_get_u16('batt', 'vmin', 3500) # mV vMax = badge.nvs_get_u16('batt', 'vmax', 4100) # mV vBatt = badge.battery_volt_sense() vDiff = vMax-vMin battPercent = (vBatt-vMin)/vDiff battPercent = min(1.0, max(0.0, battPercent)) #sanitize between 1.0 and 0.0 battBarSize = int(battPercent*(ugfx.width()-2)) battBarYPos = int(ugfx.height()-BATTERYBAR_HEIGHT-1) ugfx.area(1,battBarYPos,battBarSize,BATTERYBAR_HEIGHT,ugfx.BLACK) #draw a battery bar at the bottom of the screen ugfx.flush() def set_font_menu(): #menu options = ugfx.List(0,0,int(ugfx.width()),ugfx.height()) #options already handles up/down on it's own for font in ugfx.fonts_list(): #all available system fonts options.add_item(font) ugfx.input_init() ugfx.input_attach(ugfx.JOY_UP, lambda pushed: ugfx.flush() if pushed else False) ugfx.input_attach(ugfx.JOY_DOWN, lambda pushed: ugfx.flush() if pushed else False) ugfx.input_attach(ugfx.BTN_START,lambda pushed: set_font(options.selected_text()) if pushed else False) ugfx.input_attach(ugfx.BTN_A,lambda pushed: set_font(options.selected_text()) if pushed else False) ugfx.input_attach(ugfx.BTN_B,lambda pushed: mainmenu() if pushed else False) ugfx.flush() ########################## ## Actual program logic ## ########################## def mainroutine(): wifi.init() wait_wifi() try: if(SHOW_WIFI_MESSAGES): show("Requesting...") r = urequests.get(get_url()) except: show("Connection problems") if not wifi.sta_if.isconnected(): wifi.init() wait_wifi() else: if r.status_code == 200: show(r.text) r.close() else: show("Error at fetching file") r.close() badge.nvs_set_str("boot","splash", OWNNAME) #set badge to reboot into this badge.nvs_set_str(OWNNAME, "sleepuntil", str(time.time() + SLEEPTIME)) badge.eink_busy_wait() #wait for eink display to draw deepsleep.start_sleeping(SLEEPTIME*1000) #let's go to sleep def mainmenu(): url = get_url() show(MENUTEXT+get_font()+"\n"+url) ugfx.input_init() ugfx.input_attach(ugfx.BTN_A,lambda pushed: dialogs.prompt_text("Enter URL", url, cb=set_url)) ugfx.input_attach(ugfx.BTN_B,lambda pressed: appglue.start_app("launcher")) ugfx.input_attach(ugfx.BTN_START,lambda pressed: mainroutine()) ugfx.input_attach(ugfx.BTN_SELECT,lambda pressed: set_font_menu()) ################## ## Startup code ## ################## ugfx.init() badge.init() displayloop = badge.nvs_get_str('boot','splash', "splash") == OWNNAME #check if the app is inside the deepsleep-mode that full-resets all memory if( machine.reset_cause() == machine.DEEPSLEEP_RESET and displayloop ): if(time.time() < int(badge.nvs_get_str(OWNNAME, "sleepuntil", "0")) #if we wake up earlier but from timer (due to RTC-bug) sleep again and (time.time() * int(badge.nvs_get_str(OWNNAME, "sleepuntil", "0")) > 0) ): #also if the sleepuntil overflows to negative (or the time.time we wake up deepsleep.start_sleeping(SLEEPTIME*1000) #let's go to sleep mainroutine() else: #when the app reset with the reset-button on the back or started normally badge.nvs_set_str("boot","splash","splash") #reset it to boot to splash mainmenu()