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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)* K& E, u( B7 z
- #include <ESP8266HTTPClient.h>
! Z) o3 k! } _* ~# f - #include <ESP8266WiFi.h>
8 M3 l1 b1 W1 }/ z1 a! A - #include <ESP8266WiFiMulti.h>
( s0 {1 Y2 E) Y6 N' w @! O - #include <ESP8266WebServer.h>
, u: A& i$ K! f+ {5 d7 m; s - #include <arduino.h>- C2 v4 ^4 i" J, H5 A
- ESP8266WiFiMulti WiFiMulti;
) e# \/ y& r, t# U" P: j# \ - ESP8266WebServer server(80);% @4 J4 e2 W# ~+ {( b
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 {6 n5 Y2 O5 F8 W, e
- ADC_MODE(ADC_VCC);
3 b: }8 v- G3 r- f) p0 k/ N& h. T - void setup() {& ]2 }* C" J1 d: Y! w) a6 c/ P7 U
- Serial.begin(115200);) x- @' I, d6 n+ _
- Serial.print("\r\n\n");
O, ^# {3 M) r4 K8 x" u - pinMode(2,OUTPUT);
\+ Z: d. u6 ]' t6 ~6 D - // WIFI
8 y" l% s* J) H' g" _* D - WiFi.mode(WIFI_STA);
1 ?- S: c) y% Q7 v7 D2 [$ @ - WiFi.hostname("Sparkle");
) `9 Y2 T! R; I v7 o' p - WiFiMulti.addAP("wifi ssid", "wifi password");* P7 R) W3 x; A/ r8 P" ?
- int tryNum = 15;
- y1 i6 w; V. [ - Serial.print("Connect WiFi");
( m+ O$ G- i6 e, x2 w7 C" @ - while (WiFiMulti.run() != WL_CONNECTED) {
- v) ` U- t2 F* G5 z7 k2 f - digitalWrite(2,0);& s$ c4 x8 M: p0 j0 H0 W
- delay(200);9 d2 j. M8 R. _" S0 J
- digitalWrite(2,1);
1 ^# ?' G! |7 x' p - delay(300);6 X$ m& N7 Y4 F9 Y' L
- Serial.print(".");0 M2 m; l9 K6 x9 l5 y J2 J
- tryNum--;4 w1 t0 b1 f; |- O+ q
- if (tryNum == 0) {
* G+ @; u1 w3 Y# z - // 1min
* _7 |9 y. X& L" Z$ w. Z s/ R - // ESP.deepSleep(60e6);/ P- h6 P5 P0 H3 }
- ESP.deepSleep(0);
0 {; q: c5 [7 Z* a3 A - }+ E8 ~( Y9 ^& j$ A
- }0 c$ S9 {! J6 R. i" n3 k" E! M
- Serial.print("\r\n");% M Z* y. v8 x- `+ |- s. f
- digitalWrite(2,1);: h! K6 b& T. H3 H# Y1 N- R
- Serial.print("IP address : ");( H4 A5 R# O$ k; S1 B2 |/ K" g
- Serial.println(WiFi.localIP());5 j1 p7 g+ F2 Y" n+ V3 N0 N9 E
- server.on("/", HTTP_GET, [](){
1 V% J$ m7 u* _0 X, G. C$ G - server.sendHeader("Connection", "close");
" @6 S) c9 w/ f$ g% [6 v" Q - server.send(200, "text/html", serverIndex);/ z+ ?+ _/ Q ^. L
- });
$ ]: ?0 z$ v |% ] _7 Y - server.on("/update", HTTP_POST, [](){2 m! F' S9 k( U
- server.sendHeader("Connection", "close");$ O A7 `( M5 c! t1 E& r" x
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% U$ x( _2 W1 H6 e6 u# X
- ESP.restart();5 L% E- F# d1 Y
- },[](){0 B# ^( _. ]$ l" a, S+ _
- HTTPUpload& upload = server.upload();3 ], {: b; a- p1 l% E
- if(upload.status == UPLOAD_FILE_START){) K1 R4 M$ S4 }8 J
- Serial.setDebugOutput(true);! L0 I/ T f5 u; ?, z& x
- Serial.printf("Update: %s\n", upload.filename.c_str());
9 Z$ Z7 O1 D2 b" ~ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 W$ Z! T, K& D
- if(!Update.begin(maxSketchSpace)){
# A! C! O: p E f( H7 M' B - Update.printError(Serial);
3 t+ a2 j4 p( P/ {+ q. h - }
8 ]6 I- b, g' ~$ l& n b - } else if(upload.status == UPLOAD_FILE_WRITE){; c$ Z" y. b5 ~) F/ a
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){/ c* T- A* {- Q0 H$ @2 L: c8 z
- Update.printError(Serial);
3 Z' s2 X" |2 v, v2 m) L - }
+ d: D' r7 c! f - } else if(upload.status == UPLOAD_FILE_END){
" u7 X7 |4 K- C2 E3 G" q0 |" e - if(Update.end(true)){
5 T5 F: x5 g- w( I - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 v5 E0 u' b% T& N. u - } else {' S$ H8 S3 q( z
- Update.printError(Serial);
7 l# ]& J% K+ n3 }) H - }/ ~: k$ B1 N2 y8 G
- Serial.setDebugOutput(false);1 q/ W0 Y7 g4 g8 R5 P0 T% [/ W8 j
- }4 j' H# [, R( c) }" y- D+ `$ E
- yield();+ V4 [6 a( E c, V& X
- });
% e8 }2 `$ i" {5 J% t1 t$ s -
0 {+ B1 F% V G2 o - digitalWrite(2,0);$ g( [+ b U5 H4 S! n! d
- mainAction();' a6 P) l# i* P) |
- if (digitalRead(0)){! |7 x) s! M p8 G. B
- ESP.deepSleep(0);) r1 a$ \: b3 W9 A1 {
- } else {
9 n g) U/ E/ G4 n - server.begin();' l- s0 @3 W% \9 R1 W
- }# M% u2 T" p6 o& C
- }
8 D4 E G2 @' C* V0 u% E - void loop() {5 {6 S4 z2 l. b, E
- server.handleClient();
4 M4 z$ G- A2 W/ i5 w5 \/ K' J - delay(1);5 B v, _8 L3 {
- }
! f+ K. R" v% z8 h' K7 } - String doGet(String url){
: v O" _( f: w: f, |8 H5 ?. ^ - if ((WiFiMulti.run() == WL_CONNECTED)) {
3 s- v/ K% i' s: W4 ~# E - HTTPClient http;# j$ d% P7 B* K! z
- Serial.println("[HTTP] begin...");
; v0 B V5 J! y* k - if (url.startsWith("https")) {
4 c' D2 J/ Y# W% i - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); Z9 T# W1 M0 ^+ F2 V9 C, D
- } else {
; X3 @7 Q2 t3 ]$ _9 U, R7 K$ [% o - http.begin(url);
$ e6 R8 k# V/ F; B& D0 C - }
- G o2 L' C9 K' f - Serial.println("[HTTP] GET...");
+ [+ n: i' b' F# {2 y - int httpCode = http.GET();4 _ ?0 V8 i7 M R' y
- if (httpCode > 0) {
$ Q {2 ~( o- z, }/ P - Serial.printf("[HTTP] code: %d\n", httpCode);# O( k5 ~% w5 \( M- D7 e
- if (httpCode == HTTP_CODE_OK) {/ m+ [( H2 }7 r) c( ^4 }
- String payload = http.getString();. X" W1 }( z4 h
- Serial.println(payload);
" P9 l% d6 h1 Q# m$ a - Serial.print("\r\n");( Q& t1 Q1 O" B- J" t7 w
- return payload;+ ]" O) z, }0 E4 w$ A" ]
- }
9 ]7 R! ?( v, q i' p& m8 ? - } else {4 e8 U2 `; ^, ^( Y# V2 n& ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",
# ~% { c0 A/ z! E/ { - http.errorToString(httpCode).c_str());
2 D* o! p' J/ x+ c2 N6 H2 i - }
) E# O2 h; j' h0 ~' F+ n' N - http.end();3 |. z5 O- C, @) @6 M5 A3 s0 d
- return "";
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- }1 L8 u0 O d7 y% X
- void mainAction() {8 W: k7 A& y# q) m9 a
- // 发送请求
1 T6 W- W3 r3 a/ w* r- S4 \ - doGet("http://google.cn");, \; M4 t$ f* m# p# l
- }
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