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BREAKING changes SPI global selector, Adding RC522 plugin
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| #!/usr/bin/env python3 | ||
| ############################################################################# | ||
| ################## RC522 RFID Reader for RPIEasy ############################ | ||
| ############################################################################# | ||
| # | ||
| # Copyright (C) 2020 by Alexander Nagy - https://bitekmindenhol.blog.hu/ | ||
| # | ||
| import plugin | ||
| import webserver | ||
| import rpieGlobals | ||
| import rpieTime | ||
| import misc | ||
| import time | ||
| import gpios | ||
| from mfrc522 import MFRC522 | ||
|
|
||
| class Plugin(plugin.PluginProto): | ||
| PLUGIN_ID = 211 | ||
| PLUGIN_NAME = "RFID - RC522" | ||
| PLUGIN_VALUENAME1 = "Tag" | ||
|
|
||
| def __init__(self,taskindex): # general init | ||
| plugin.PluginProto.__init__(self,taskindex) | ||
| self.dtype = rpieGlobals.DEVICE_TYPE_SPI | ||
| self.vtype = rpieGlobals.SENSOR_TYPE_TEXT | ||
| self.valuecount = 1 | ||
| self.senddataoption = True | ||
| self.timeroption = False | ||
| self.timeroptional = False | ||
| self.formulaoption = False | ||
| self.reader = None | ||
| self.lastread = 0 | ||
| self.readinprogress = 0 | ||
| self.trigger = 0 | ||
|
|
||
| def plugin_init(self,enableplugin=None): | ||
| plugin.PluginProto.plugin_init(self,enableplugin) | ||
| self.decimals[0] = -1 | ||
| self.initialized = False | ||
| if self.enabled: | ||
| try: | ||
| spil = self.spi | ||
| except: | ||
| spil = -1 | ||
| try: | ||
| rstpin = self.taskdevicepin[0] | ||
| except: | ||
| rstpin = -1 | ||
| spil = -1 | ||
| try: | ||
| ipin = self.taskdevicepin[1] | ||
| except: | ||
| ipin = -1 | ||
| spil = -1 | ||
| if spil>-1: | ||
| try: | ||
| gpios.HWPorts.remove_event_detect(int(ipin)) | ||
| except: | ||
| pass | ||
| try: | ||
| self.reader = MFRC522(bus=spil,device=self.spidnum,pin_rst=rstpin) | ||
| self.initialized = True | ||
| self.timer100ms = True | ||
| self.readinprogress = 0 | ||
| self.trigger = 0 | ||
| self.lastread = 0 | ||
| try: | ||
| if ipin>-1: | ||
| gpios.HWPorts.add_event_detect(int(ipin),gpios.FALLING,self.callback) | ||
| except: | ||
| pass | ||
| self.rc_clear_irq() | ||
| misc.addLog(rpieGlobals.LOG_LEVEL_DEBUG,"RC522 init ok") | ||
| except Exception as e: | ||
| self.initialized = False | ||
| misc.addLog(rpieGlobals.LOG_LEVEL_ERROR,"RC522 init error:"+str(e)) | ||
| if self.initialized==False: | ||
| self.timer100ms = False | ||
|
|
||
| def timer_ten_per_second(self): | ||
| if self.timer100ms and self.initialized and self.trigger==0 and self.readinprogress==0: | ||
| self.trigger=1 | ||
| try: | ||
| self.rc_activate_trigger() | ||
| except: | ||
| pass | ||
| self.trigger=0 | ||
| return self.timer100ms | ||
|
|
||
| def callback(self,channel): | ||
| if self.readinprogress==0: | ||
| self.readinprogress = 1 | ||
| if time.time()-self.lastread>=2: #do not retrigger within 2 seconds | ||
| id = None | ||
| try: | ||
| c = 0 | ||
| while not id and c<3: | ||
| id = self.rc_read_id_no_block() | ||
| c += 1 | ||
| except Exception as e: | ||
| id = None | ||
| if id is not None: | ||
| self.set_value(1,str(id),True) | ||
| self.lastread = time.time() | ||
| self._lastdataservetime = rpieTime.millis() | ||
| else: | ||
| time.sleep(0.5) #suppress quick readings | ||
| self.readinprogress = 0 | ||
| self.rc_clear_irq() | ||
| if self.trigger==0: | ||
| self.rc_activate_trigger() | ||
|
|
||
| def rc_uid_to_num(self,uid): | ||
| n = 0 | ||
| for i in range(0, 5): | ||
| n = n * 256 + uid[i] | ||
| return n | ||
|
|
||
| def rc_read_id_no_block(self): | ||
| (status, TagType) = self.reader.MFRC522_Request(self.reader.PICC_REQIDL) | ||
| if status != self.reader.MI_OK: | ||
| return None | ||
| (status, uid) = self.reader.MFRC522_Anticoll() | ||
| if status != self.reader.MI_OK: | ||
| return None | ||
| return self.rc_uid_to_num(uid) | ||
|
|
||
| def rc_activate_trigger(self): | ||
| self.reader.Write_MFRC522(0x09,0x26) | ||
| self.reader.Write_MFRC522(0x01,0x0C) | ||
| self.reader.Write_MFRC522(0x0D,0x87) | ||
|
|
||
| def rc_clear_irq(self): | ||
| self.reader.Write_MFRC522(0x04,0x7F) # clear all active irq | ||
| self.reader.Write_MFRC522(0x02,0xA0) # ComIEnReg active low, receive int | ||
|
|
||
| def webform_load(self): # create html page for settings | ||
| webserver.addFormPinSelect("Reset pin (required)","taskdevicepin1",self.taskdevicepin[0]) | ||
| webserver.addFormNote("Set to an Output pin connected to RC522 reset pin!") | ||
| webserver.addFormPinSelect("IRQ pin (required)","taskdevicepin2",self.taskdevicepin[1]) | ||
| webserver.addFormNote("Set to an Input-Pullup pin connected to RC522 IRQ pin!") | ||
| return True | ||
|
|
||
| def webform_save(self,params): # process settings post reply | ||
| changed = False | ||
| par = webserver.arg("taskdevicepin1",params) | ||
| if par == "": | ||
| par = 25 | ||
| pval = self.taskdevicepin[0] | ||
| self.taskdevicepin[0] = int(par) | ||
| if pval != self.taskdevicepin[0]: | ||
| changed = True | ||
| par = webserver.arg("taskdevicepin2",params) | ||
| if par == "": | ||
| par = 18 | ||
| pval = self.taskdevicepin[1] | ||
| self.taskdevicepin[1] = int(par) | ||
| if pval != self.taskdevicepin[1]: | ||
| changed = True | ||
| if changed: | ||
| self.plugin_init() | ||
| return True | ||
|
|
||
| def plugin_exit(self): | ||
| self.initialized = False | ||
| self.timer100ms = False | ||
| return True |
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