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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)8 D3 K3 c% o5 s
- #include <ESP8266HTTPClient.h>% N& l! y5 u6 U. Q+ K
- #include <ESP8266WiFi.h> C# O6 t9 e5 {5 y. C
- #include <ESP8266WiFiMulti.h>. p$ b- j; z" h5 m
- #include <ESP8266WebServer.h>1 c& t) [. G E2 m. U2 Y. {" N7 [5 Q) t
- #include <arduino.h>
" f. i2 d' ? p. _* m - ESP8266WiFiMulti WiFiMulti;
0 `6 S# m9 k* m4 S7 r: } - ESP8266WebServer server(80);
3 e1 A' T, L& y8 }1 ]' ?# b - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 a3 Y/ |: {9 k3 p l) W9 L0 a
- ADC_MODE(ADC_VCC);
, v- f4 B) G% Z: S: i' ~ - void setup() {4 k/ z( Y9 F2 A3 o
- Serial.begin(115200);) t' M% P+ \& }# `
- Serial.print("\r\n\n");
: G, s% G7 a( r7 r* L - pinMode(2,OUTPUT);
7 g) @8 g4 Z$ e6 e v - // WIFI2 }9 j1 T+ G% R, s7 ~3 r
- WiFi.mode(WIFI_STA);
) v9 k" h. m& k2 O4 D9 x! v - WiFi.hostname("Sparkle");. K9 W5 T& G6 O5 s) C: v r
- WiFiMulti.addAP("wifi ssid", "wifi password");& E! f9 {+ F# g: E* |3 }
- int tryNum = 15;1 N C6 i6 m2 W8 o: z
- Serial.print("Connect WiFi");3 {9 N0 o( v2 \4 [: M
- while (WiFiMulti.run() != WL_CONNECTED) {' m# F5 P3 V# {5 m. O
- digitalWrite(2,0);
; \- L" z/ \# S3 [' v# Q+ A: h - delay(200);
" I* ? V, D3 ^! _+ H - digitalWrite(2,1);" r7 h$ P9 M& c: r( c
- delay(300);; j3 @" W5 g' A
- Serial.print(".");
8 m- j4 X% ?! h: T0 K - tryNum--;
4 }5 K6 ~- q1 w2 X _- x - if (tryNum == 0) {
; Y* l& E( O6 V' f ^4 Q# ~ - // 1min
% q" ~ [, F" y4 W: U9 [) T& C - // ESP.deepSleep(60e6);) M6 h* Y1 Z; K$ f
- ESP.deepSleep(0);
" C* A+ H8 M3 [2 Y' [* ~ - }# y4 }& U# v b" ~# `
- }
8 H& a- o. c) I - Serial.print("\r\n");
. u! X1 n0 L' u8 S ~ - digitalWrite(2,1);
% b& t! I a5 v6 s+ e - Serial.print("IP address : ");$ P. q, f3 F1 b- y8 S8 @: I
- Serial.println(WiFi.localIP());9 X: s/ L* y2 A9 n/ B
- server.on("/", HTTP_GET, [](){
+ t' G4 w8 {8 p" ~& S4 ~, G, I- O - server.sendHeader("Connection", "close");6 a# L1 X9 k; W# x3 [4 D
- server.send(200, "text/html", serverIndex);7 b* v: d1 e# N5 _- h
- });9 E& H$ F; w" r, B3 f
- server.on("/update", HTTP_POST, [](){$ P7 \% h; o, F& W
- server.sendHeader("Connection", "close");% F% ^5 p8 _0 L3 p- h2 {
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. B6 b- V" h1 K% W6 C
- ESP.restart();0 m; S& Y0 ~# A; P+ J- Q
- },[](){* L$ l+ |# v' m$ x9 g+ l
- HTTPUpload& upload = server.upload();% C$ ?, k7 m: k! _& p- Y! M5 ~" B
- if(upload.status == UPLOAD_FILE_START){7 T0 X B9 l; _
- Serial.setDebugOutput(true);
0 F! o9 E1 k2 E+ | - Serial.printf("Update: %s\n", upload.filename.c_str());% W# h( j& |1 D# S. }
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 e5 Z1 j% j5 s' n) F. I) c
- if(!Update.begin(maxSketchSpace)){
0 `# i& c! l' L; T - Update.printError(Serial);. f! L; e% L) V7 j; ?4 w% ?
- }. @, l- u6 d% g+ y3 l5 `7 k9 Y" ~
- } else if(upload.status == UPLOAD_FILE_WRITE){
6 [& [4 ?3 x& c - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# x. M! y1 ^" Q8 v - Update.printError(Serial);
% B) I9 [4 ]7 J; l8 l - }/ `" n0 A' \9 k+ w7 X' m3 _ R" f
- } else if(upload.status == UPLOAD_FILE_END){
; @' q$ P7 F8 A - if(Update.end(true)){+ w/ y' O5 y/ A; J, q1 ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# W1 g8 c% w+ _ - } else {
8 K) {9 z: P3 b - Update.printError(Serial);- h K5 A' Q7 _% H1 G! G
- }
1 s: B/ L9 H6 c y- \8 H - Serial.setDebugOutput(false);; h2 M6 T1 d' `
- }
& {1 `" f: x) q/ G2 x" b7 M: p - yield();
! `% T" u7 R1 e/ v6 W - });
" _2 B( q" z' }$ H" m# B- e -
3 P5 p$ G _7 Q, ?9 a - digitalWrite(2,0);
_: S5 w: ~+ ] - mainAction();
\: @9 H4 V! S2 D# d1 m - if (digitalRead(0)){
$ l, O: ~" ]8 m! l2 s' O/ u - ESP.deepSleep(0);
, z9 y8 K+ ?4 b: W9 l - } else {
' k; n) J/ S' Q, M/ O# P ~ - server.begin();; I- \" k' K4 h. r
- }, }( h) b, n& R, I+ U
- }( S: n) G4 V& R# [
- void loop() {8 D4 s' A" E$ m& z
- server.handleClient();* e- O6 O& u- J, I
- delay(1);
8 ?0 V2 ~# Y, i3 W' o+ ? - }* i* ?* V* _% o* x, V
- String doGet(String url){4 q% @9 K0 Q. J/ r+ G( ]' a9 ^
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 e1 x6 B0 K) ~3 y0 r6 {2 o% M: L4 M - HTTPClient http;3 o8 G- {- C# A( L) T
- Serial.println("[HTTP] begin...");
" A" s( ]- K$ b7 j- q7 c - if (url.startsWith("https")) {
( ^; u7 ^' Z9 D3 Y+ V+ Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 P. s, l: j5 t1 _5 }1 _
- } else {) \3 v. e8 @/ m, H* @& G
- http.begin(url);& g1 J) R" t8 J* j& a- A: j
- }
. A" A; S6 p/ H3 A- @; ? - Serial.println("[HTTP] GET...");" E3 X6 G3 T' V5 x1 J
- int httpCode = http.GET();& @2 J+ N) j* E+ }1 g
- if (httpCode > 0) {! i9 F( u# G4 \7 v
- Serial.printf("[HTTP] code: %d\n", httpCode);+ o) u$ g' n6 I. Y6 z. l) D- C% h
- if (httpCode == HTTP_CODE_OK) {
3 F% q0 ~- o0 r - String payload = http.getString();: ?) e1 h2 l0 W4 t; Z4 y
- Serial.println(payload);
. f2 Y7 f2 D2 J; g* H - Serial.print("\r\n");
2 G4 j* F! ^# j - return payload;
" O' K1 h9 w4 M$ G - }, J3 Q2 v6 Z0 l
- } else {
- }2 z8 v9 A) c! }3 e5 N: n& S! Q - Serial.printf("[HTTP] GET... failed, error: %s\n",/ a" a8 t; E) Z d0 B* K- T
- http.errorToString(httpCode).c_str());
7 E6 Z1 [# }5 p3 P0 Y - }
( _) u2 R* v B: g2 { - http.end();
. o+ m* [: ]% |! P+ \$ p* w0 f - return "";
z! E ?/ q5 V& ` - }
, a& B! T/ W. x) A* a: j" L( O4 h - }
}7 f$ A0 @$ D1 L) k3 S - void mainAction() {4 C# a& D# U' O* T! G: L+ `
- // 发送请求8 Z0 ~) K* f7 h' Y( f7 m
- doGet("http://google.cn"); J, R3 l" d# F: x" X) ?
- }5 t4 J+ y, \1 \" A P
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