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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)5 J# n, A' E+ ]( w* b
- #include <ESP8266HTTPClient.h>' G: D( O: E, n
- #include <ESP8266WiFi.h>
/ c$ }( f2 I: i! i2 u2 D. } - #include <ESP8266WiFiMulti.h>
5 c" Q# E3 N& ^" d4 h# c" q8 J1 K- p8 X - #include <ESP8266WebServer.h>8 J0 k( K) X3 ]; n1 ]
- #include <arduino.h>) ~3 ]7 d% W7 I- ^& V) a
- ESP8266WiFiMulti WiFiMulti;* \. t% d) }0 V: k5 G
- ESP8266WebServer server(80);
0 m- f0 x. B/ e6 |: L6 \ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, A! s/ u n8 u4 {% e$ q! H( j - ADC_MODE(ADC_VCC);
0 N$ J: o/ V" u7 t7 H - void setup() {) c R( }/ L `; f% a
- Serial.begin(115200);+ Z; z$ e- Q3 i) u: ^
- Serial.print("\r\n\n");
1 |! o* U, x6 r. U7 ~ - pinMode(2,OUTPUT);
) _- f9 |; u1 q4 ~$ {% c: n Z - // WIFI
8 o. y$ a6 X% J0 @" `) A0 }; i# I - WiFi.mode(WIFI_STA);
2 N' P& v0 v. G) I" }0 @" g - WiFi.hostname("Sparkle");& ^/ r( b! C/ Y2 P" H) U) T3 L
- WiFiMulti.addAP("wifi ssid", "wifi password");. [$ k* l: z: F9 r: ~, K
- int tryNum = 15;
5 w S q/ h9 J4 y5 x* e% v - Serial.print("Connect WiFi");1 Y$ J& J2 b7 K- d4 a* l
- while (WiFiMulti.run() != WL_CONNECTED) {) X5 u0 V5 ^7 ^1 V
- digitalWrite(2,0);
1 G! p% K+ z0 G+ T' ~ - delay(200);+ {% A" t. b U6 a# `
- digitalWrite(2,1);. p9 Q. A" k u. X \+ c& W
- delay(300);6 x; a8 D( Z) v; {0 O% `
- Serial.print(".");: o* q( U% n& Z" [- T" W
- tryNum--;( S( ~; n5 Q! r' D
- if (tryNum == 0) {9 t1 A0 o; J/ q! l
- // 1min
# A& G' o4 p* q# f9 p9 Y* k+ |( b B$ _ - // ESP.deepSleep(60e6);
( A3 }, N7 ?3 N0 U. E; Q - ESP.deepSleep(0);% P+ h- v( W3 u% h( g `- O8 i* h. i
- }, I- e x/ K4 G" ?
- }7 z, g% T; | ]2 E8 x5 X; `
- Serial.print("\r\n");1 F6 I' b+ u' s# C6 {
- digitalWrite(2,1);7 q# v1 e1 U5 p6 f% i2 W- N! |
- Serial.print("IP address : ");
' t0 |% W5 {6 z" v, j9 h1 @2 @ - Serial.println(WiFi.localIP());' g ~: F6 U4 Z9 E* w" A
- server.on("/", HTTP_GET, [](){$ r7 h) s. G" g( y5 p6 [3 p
- server.sendHeader("Connection", "close");
6 W/ G ~% x* Y- G G8 Q - server.send(200, "text/html", serverIndex);, U) U9 k: Z0 h
- });# I Z$ v9 Q L2 U' O; A; H9 t6 `# N
- server.on("/update", HTTP_POST, [](){
8 G! Y* G( ^6 q3 i4 H7 b - server.sendHeader("Connection", "close");+ u0 e* i4 C& j7 S B( |* t
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 I* j, K }8 J/ G+ W
- ESP.restart(); z( E+ q2 }$ i' B) M0 k& ?
- },[](){
2 ^3 c1 w8 n) N, A" s - HTTPUpload& upload = server.upload();
0 L+ l. U+ y/ ?* L/ R/ D3 p- a - if(upload.status == UPLOAD_FILE_START){
: K- T% ~& F: s' ~( S& t - Serial.setDebugOutput(true);" f* h" e$ |' ~6 W
- Serial.printf("Update: %s\n", upload.filename.c_str());, S. s; k/ S* D; \
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
) c0 f( U+ O W0 J - if(!Update.begin(maxSketchSpace)){
4 _4 E5 q4 ?& x) Y - Update.printError(Serial);
1 H1 I" _) o) J+ Z - }+ ~; B; D8 K0 H/ A3 h1 i1 I$ A$ _, x, A
- } else if(upload.status == UPLOAD_FILE_WRITE){
9 h9 j! E3 K+ b1 \- \& J# N) | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' z2 L9 \ p. A- m* A - Update.printError(Serial);
- J5 Q6 n( }1 Q$ N) a1 z - }) R7 z4 u8 q% F+ o+ ~* ]5 x5 O% z& T
- } else if(upload.status == UPLOAD_FILE_END){
( D( v# j$ V7 e8 ?& B# P - if(Update.end(true)){9 o d7 _% @( }9 s
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; [2 U/ a2 k8 d# n - } else {
# D1 T9 i9 H _9 F7 }. y2 L2 t4 r - Update.printError(Serial);
8 z5 y' w( T/ L5 z0 f1 N" a& y& M - }5 L; L& P+ H. M2 Q; o: M) g1 I
- Serial.setDebugOutput(false);
5 W1 M' E4 j \) ]% q+ u+ t - }. p( w7 P. _5 `% f: ^
- yield();
Z8 Q ~+ z& ~1 G - });) _) X4 C4 a6 Q5 z3 _! `( ]
- " z* H r6 t% _: Q
- digitalWrite(2,0);8 ]8 k0 p- H; M/ U d
- mainAction();$ l, E& T+ I7 g0 B1 h4 h
- if (digitalRead(0)){
7 y0 ^9 B6 ^7 z8 f$ c7 T) { - ESP.deepSleep(0);; B5 Q% ~# @; w6 E3 G
- } else {+ O4 W4 b, k7 J3 ?
- server.begin();
" l9 F* b8 p9 ]; Q' h - }
% T1 p/ e# I* r - }
% ^$ E3 Q3 }8 s - void loop() {1 B* P( o& \0 y( A* D: q
- server.handleClient();, Y) s; E3 V/ c" f
- delay(1);
# s# e* f# ]9 k; Q& ? - }
2 \, e! f6 z1 l0 P: _ - String doGet(String url){. w7 V' n( W! _. a
- if ((WiFiMulti.run() == WL_CONNECTED)) {0 C, h7 B) J% x# ]0 B
- HTTPClient http;3 l* @. c, q6 A1 ]# g
- Serial.println("[HTTP] begin...");
+ M7 T( U3 u6 f( q - if (url.startsWith("https")) {9 z4 I5 k; |( \9 D6 Z
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. U* \0 V+ h' u; M S2 V - } else {
* Z; Z r! X$ d- Y0 W - http.begin(url);
1 n, y# x6 W' P: v - }) _1 F+ C' p! e) z
- Serial.println("[HTTP] GET...");
$ }0 V$ ?- `: B% H$ q1 Z - int httpCode = http.GET();
: |) K- o* a% ?( l8 { - if (httpCode > 0) {
$ [4 K6 A& f0 _% H9 {& Y - Serial.printf("[HTTP] code: %d\n", httpCode);
2 U& @5 h$ L# b' v; d- L2 H, D - if (httpCode == HTTP_CODE_OK) {
5 U# r0 @$ i) A* p* c" _) s; P, P - String payload = http.getString();# Z% b" Y* r1 y4 G9 S. m, H: a6 t6 y
- Serial.println(payload);( r$ E) k* {2 r/ v
- Serial.print("\r\n");
. d' w5 n# }. x4 q- @5 r; [ - return payload;. j+ [- Y% m7 r% F/ }: x7 |' W9 b" `
- }, ~8 q6 R4 w) i4 \
- } else {
6 C& ~1 M2 L# ?6 Q - Serial.printf("[HTTP] GET... failed, error: %s\n",8 A( l) V' n$ z1 m5 e
- http.errorToString(httpCode).c_str());% i: h. _ P/ i+ |
- }
' X! z+ w6 ^% E( j# n" l: m - http.end();
/ c: {% o1 z2 q/ w# Q- _8 O - return "";
5 U8 H4 m/ h5 Y! b% q1 r+ J" Y - }
- B- T- Q0 P) q7 U* z: g - }% a0 X4 O, H' O3 z/ P1 z
- void mainAction() {! a2 [ J+ K. Y7 Q N5 L
- // 发送请求
* E* J8 @# B% F. G7 [ - doGet("http://google.cn");
' f" o, J9 P! P+ U- Z - }
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