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Added all files, fixed info in README.md
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,187 @@ | ||
| // +build | ||
|
|
||
| /* | ||
| * This file is part of BT-Scale (https://github.com/danielfaust/bt-scale). | ||
| * Copyright (c) 2019 Daniel Faust. | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, version 3. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, but | ||
| * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "os" | ||
| "fmt" | ||
| "log" | ||
| "flag" | ||
| "time" | ||
| "io/ioutil" | ||
| "encoding/hex" | ||
| "github.com/paypal/gatt" | ||
| ) | ||
|
|
||
| var done = make(chan struct{}) | ||
| var mac string | ||
| var uid string | ||
| var final_message string | ||
| var output = os.Stdout | ||
| var program_abortion_timeout = 30; | ||
| var prevent_program_abortion = false | ||
|
|
||
| func onPeriphConnected(p gatt.Peripheral, err error) { | ||
|
|
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| prevent_program_abortion = true | ||
|
|
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| fmt.Fprintf(output, "connected\n") | ||
|
|
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| if err := p.SetMTU(500); err != nil { | ||
| fmt.Fprintf(output, "Failed to set MTU, err: %s\n", err) | ||
| } | ||
|
|
||
| ss, err := p.DiscoverServices(nil) | ||
| if err != nil { | ||
| fmt.Fprintf(output, "failed to discover services, err: %s\n", err) | ||
| return | ||
| } | ||
|
|
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| for _, s := range ss { | ||
|
|
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| if (s.UUID().String() != "ffe0") { | ||
| continue | ||
| } | ||
|
|
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| cs, err := p.DiscoverCharacteristics(nil, s) | ||
| if err != nil { | ||
| fmt.Fprintf(output, "failed to discover characteristics, err: %s\n", err) | ||
| continue | ||
| } | ||
|
|
||
| for _, c := range cs { | ||
| if ((c.UUID().String() == "ffe1") && (c.Properties() & gatt.CharWrite) != 0 && (c.Properties() & gatt.CharNotify) != 0) { | ||
| _, err := p.DiscoverDescriptors(nil, c) | ||
| if err != nil { | ||
| fmt.Fprintf(output, "failed to discover descriptors, err: %s\n", err) | ||
| continue | ||
| } | ||
| f := func(c *gatt.Characteristic, b []byte, err error) { | ||
| if (b[0] == 0xe6 && b[1] == 0x00 && b[2] == 0x20) { | ||
| fmt.Fprintf(output, "ack init request | % X\n", b) | ||
| measuer_user := "E740" + uid | ||
| fmt.Fprintf(output, "sending measurement request %s\n", measuer_user) | ||
| measure, err := hex.DecodeString(measuer_user) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| p.WriteCharacteristic(c, measure, false); | ||
| } else if (b[0] == 0xe7 && b[1] == 0xf0 && b[2] == 0x40) { | ||
| fmt.Fprintf(output, "ack measurement request | % X\n", b) | ||
| if (b[3] == 0x00) { | ||
| final_message = "measurement trigger succeeded" | ||
| } else { | ||
| final_message = "measurement trigger failed, unknown user id" | ||
| } | ||
| p.Device().CancelConnection(p) | ||
| } else { | ||
| fmt.Fprintf(output, "notified: % X | %q\n", b, b) | ||
| } | ||
| } | ||
| if err := p.SetNotifyValue(c, f); err != nil { | ||
| fmt.Fprintf(output, "failed to subscribe characteristic, err: %s\n", err) | ||
| continue | ||
| } | ||
| fmt.Fprintf(output, "sending init request E601\n") | ||
| init := []byte{0xe6, 0x01} | ||
| p.WriteCharacteristic(c, init, false); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func onPeriphDisconnected(p gatt.Peripheral, err error) { | ||
| fmt.Fprintf(output, "done, disconnecting...\n") | ||
| fmt.Fprintf(os.Stdout, "disconnected, %s\n", final_message) | ||
| close(done) | ||
| } | ||
|
|
||
| func onPeriphDiscovered(p gatt.Peripheral, a *gatt.Advertisement, rssi int) { | ||
| fmt.Fprintf(output, "found %s | %s\n", p.ID(), p.Name()) | ||
| if (mac != "" && uid != "") { | ||
| if (p.ID() == mac) { | ||
| p.Device().StopScanning() | ||
| fmt.Fprintf(output, "connecting...\n") | ||
| p.Device().Connect(p) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func onStateChanged(d gatt.Device, s gatt.State) { | ||
| switch s { | ||
| case gatt.StatePoweredOn: | ||
| fmt.Fprintf(output, "scanning...\n") | ||
| d.Scan([]gatt.UUID{}, true) | ||
| if (mac != "" && uid != "") { | ||
| time.Sleep(time.Duration(program_abortion_timeout) * time.Second) | ||
| } | ||
| if (prevent_program_abortion == false) { | ||
| fmt.Fprintf(os.Stdout, "disconnected, program execution timeout\n") | ||
| close(done) | ||
| } | ||
| return | ||
| default: | ||
| d.StopScanning() | ||
| } | ||
| } | ||
|
|
||
| func main() { | ||
|
|
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| final_message = "measurement trigger failed, unknown reason" | ||
|
|
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| flag.StringVar(&mac, "mac", "", "mac address") | ||
| flag.StringVar(&uid, "uid", "", "user id") | ||
|
|
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| flag.IntVar(&program_abortion_timeout, "timeout", program_abortion_timeout, "program timeout in seconds") | ||
|
|
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| var output_to_stderr bool | ||
| flag.BoolVar(&output_to_stderr, "stderr", false, "print everything but the result to stderr instead of stdout?") | ||
|
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| flag.Parse() | ||
|
|
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| if (output_to_stderr) { | ||
| output = os.Stderr | ||
| } | ||
|
|
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| log.SetFlags(0) | ||
| log.SetOutput(ioutil.Discard) | ||
|
|
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| if (mac == "" || uid == "") { | ||
| fmt.Fprintf(output, "incomplete parameters, will only scan and print out found mac adresses and their respective names\n") | ||
| } | ||
|
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| DefaultClientOptions := []gatt.Option{ | ||
| gatt.LnxMaxConnections(1), | ||
| gatt.LnxDeviceID(-1, false), | ||
| } | ||
|
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| d, err := gatt.NewDevice(DefaultClientOptions...) | ||
| if err != nil { | ||
| fmt.Fprintf(output, "no permissions to access device? failed to open device, err: %s\n", err) | ||
| return | ||
| } | ||
| d.Handle( | ||
| gatt.PeripheralDiscovered(onPeriphDiscovered), | ||
| gatt.PeripheralConnected(onPeriphConnected), | ||
| gatt.PeripheralDisconnected(onPeriphDisconnected), | ||
| ) | ||
| d.Init(onStateChanged) | ||
| <-done | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| # -*- coding: utf-8 -*- | ||
|
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||
| # 好 | ||
|
|
||
| ''' | ||
| * This file is part of BT-Scale (https://github.com/danielfaust/bt-scale). | ||
| * Copyright (c) 2019 Daniel Faust. | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, version 3. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, but | ||
| * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| ''' | ||
|
|
||
| import os | ||
| import sys | ||
| import json | ||
| import time | ||
| import datetime | ||
| import subprocess | ||
|
|
||
| #=============================================== | ||
| sys.dont_write_bytecode = True | ||
| #=============================================== | ||
|
|
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| print '' | ||
| print '----------------------------------------------' | ||
| print 'cronjob.py started running at', datetime.datetime.now().isoformat() | ||
| sys.stdout.flush() | ||
|
|
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| # ensure that the current working directory is the one of this script. | ||
| # this is probably bad practice but it safeguards a lot of things. | ||
| os.chdir(os.path.dirname(os.path.abspath(__file__))) | ||
|
|
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| import users | ||
| mac = users.SCALE | ||
| uid = None | ||
| if len(users.USERS) > 0: | ||
| uid = users.USERS[0]['uid'] # any user can be used in order to wake up the scale | ||
|
|
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| if mac == 'XX:XX:XX:XX:XX:XX': | ||
| print 'there is no scale configured in users.py, exiting.' | ||
| sys.exit(0) | ||
|
|
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| if uid is None: | ||
| print 'there is no user configured in users.py, exiting.' | ||
| sys.exit(0) | ||
|
|
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| failure_counter = 0 | ||
|
|
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| while True: | ||
| try: | ||
| print '----------------------------------------------' | ||
| print '' | ||
| sys.stdout.flush() | ||
| result = subprocess.check_output(["sudo", "./bt-scale", "-mac=" + mac, "-uid=" + uid, "-stderr=true"], stderr=sys.stdout, universal_newlines=True).strip() | ||
| print result | ||
| if result == 'disconnected, measurement trigger succeeded': | ||
| try: | ||
| print '' | ||
| print '----------------------------------------------' | ||
| print 'will start running scale.py in 5 seconds' | ||
| time.sleep(5) | ||
| import scale | ||
| response = scale.start_measurement_script() | ||
| json.dumps(response, indent=2) | ||
| break | ||
| except: | ||
| failure_counter += 1 | ||
| print 'connection or readout failed, will retry in 5 seconds.', failure_counter, 'attempts were made.' | ||
| if failure_counter == 5: # this is probably a real problem, just terminate the script. | ||
| sys.exit(0) | ||
| time.sleep(5) | ||
| except: | ||
| print 'this failure is too complex to handle, this needs manual intervention.' | ||
| sys.exit(0) |
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