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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). Y- V' C% X! t8 W% T+ ^# ? W
- #include <ESP8266HTTPClient.h>% c2 X6 a9 s( \+ |
- #include <ESP8266WiFi.h>
8 o1 g% {' U' H, H - #include <ESP8266WiFiMulti.h>; n7 C3 V; b' D3 M' N* i0 U" A) E
- #include <ESP8266WebServer.h>
9 v( a5 u) B- l - #include <arduino.h>
! I& \7 N( c* Y - ESP8266WiFiMulti WiFiMulti;
" i0 ?, u1 `5 y7 x/ G - ESP8266WebServer server(80);1 Q+ v6 j; J/ z, F4 F! W& ]7 C7 s
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 ]* J7 I/ y e8 ?, P
- ADC_MODE(ADC_VCC);" \; _2 c: r A0 H! A; S
- void setup() {
. W& n5 T6 p; v! h7 y, [ - Serial.begin(115200);% O9 ]- u$ n" z# G7 A( {0 B
- Serial.print("\r\n\n");# r/ t# y0 R* r: k+ g8 }
- pinMode(2,OUTPUT);% h* L8 e* ?0 X0 Y e
- // WIFI7 `3 n" x6 C( h* p
- WiFi.mode(WIFI_STA);
2 D' m8 D/ n1 M+ u: V) t - WiFi.hostname("Sparkle"); j! \( f m2 A3 s- d# ]% g8 K
- WiFiMulti.addAP("wifi ssid", "wifi password");
( M: Q n; |) V7 V0 j# p - int tryNum = 15;
. [% Q5 ]: D) @/ j/ c6 d/ P. V - Serial.print("Connect WiFi");1 M3 X$ R1 F$ U9 [3 G6 S$ A& `& Y
- while (WiFiMulti.run() != WL_CONNECTED) {8 q8 c) k9 ^0 \8 D
- digitalWrite(2,0);2 ~& W4 Y6 M* |* K# P. I* M
- delay(200);
( I5 k# a& j6 u/ d h. R - digitalWrite(2,1);
, v% N% E' w0 ?) J. c8 p8 z - delay(300);
( ~ u, }- j) B! b' T - Serial.print(".");
9 `$ ~) x# C( k, M/ l* G - tryNum--;
5 f" c; k) r# j( Q+ q- Q$ Z* o; { - if (tryNum == 0) {
0 ?' b4 e- E9 E1 W% T9 {( d - // 1min+ L3 D0 o# v1 \3 N9 N' X& n8 d* \
- // ESP.deepSleep(60e6);* k: r$ Q, b6 r/ F6 O$ A( x
- ESP.deepSleep(0);" ]3 p# x* I+ Z! ?9 t$ P# N3 m A
- }$ e0 E0 B+ `* d' ~
- }
2 C4 b% k4 p6 t* Q' |8 j - Serial.print("\r\n");- ?4 e/ i/ V$ O7 \" d# W: I+ [4 o' Y
- digitalWrite(2,1);: L, v0 l( L! k: K* Y1 `) ~
- Serial.print("IP address : ");1 b/ `% x8 O2 b. }- m9 M
- Serial.println(WiFi.localIP());
) M* s0 A. m6 L$ r! ? - server.on("/", HTTP_GET, [](){
$ t' e* |; T- ]5 u9 b; a# J5 F' q1 d - server.sendHeader("Connection", "close");
8 ^- z4 [6 ? C6 l4 x - server.send(200, "text/html", serverIndex);( ~) Q7 u4 ~8 Z4 d& ~
- });
( q" Q) n* d! C ^4 b( P3 [ - server.on("/update", HTTP_POST, [](){. n, Q4 A* E/ g- J! L' m
- server.sendHeader("Connection", "close");
& X4 }4 P7 B( t `$ P+ a( f f - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 X& x9 M9 @. N1 `* t( U2 x - ESP.restart();
$ u% ~3 n0 {9 z - },[](){+ ^3 V* Z( g: [# X4 q
- HTTPUpload& upload = server.upload();. J) E! E9 E! N. R) M7 f9 ]
- if(upload.status == UPLOAD_FILE_START){
9 G; D. x, V! |: l( i2 S4 A2 R - Serial.setDebugOutput(true);
3 M8 n9 K- `# c - Serial.printf("Update: %s\n", upload.filename.c_str());: h- C, q# _4 Z- G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; r8 m" z% g @+ K, M4 O
- if(!Update.begin(maxSketchSpace)){
+ o4 ^7 X* \" B- B( r6 F - Update.printError(Serial);
6 O! N/ {5 | ?( o8 O, O- R - }! E* ^- W4 y7 L, `* J
- } else if(upload.status == UPLOAD_FILE_WRITE){2 w, k, I- X0 L+ ^+ a1 j
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ I3 ^& \- w# c - Update.printError(Serial);
% I" L/ b: m1 X: w - }( u# e$ Q7 E: s* ?
- } else if(upload.status == UPLOAD_FILE_END){5 j0 u- W) a9 p+ ^
- if(Update.end(true)){- Q% ^: L. t8 k5 Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 Y/ l9 [) b' e4 g# k
- } else {' p2 v. g4 p! X/ `" Z$ k
- Update.printError(Serial);
4 D3 W0 E2 z3 C! H/ \2 I! E - }
2 R& a3 i q0 O0 A C - Serial.setDebugOutput(false);0 D& c; C" E; \$ Q) {
- }
7 Q( W; ?+ ?2 g5 L( N( _' U7 Q8 D4 ? - yield();
) `. {7 G: } m, n/ O - });$ Z2 K7 B! I6 k3 g9 D
- 8 K+ P4 N1 t8 p/ M9 [1 T$ p4 C9 t
- digitalWrite(2,0);# g) P& b6 f, E$ Q
- mainAction();
# `! n$ P7 W. U2 G1 P+ b' q* G6 w - if (digitalRead(0)){
7 e: c7 G# S( B c - ESP.deepSleep(0);
5 V$ v% i2 v8 d* f/ N) v6 _5 | - } else {! l: j# _ N' ^; T& k
- server.begin();- I8 S1 c d! b2 r( F: m, e
- }
7 t: D' E6 M! Y5 {) G6 [. R - }
, a9 l* r+ T8 z. f - void loop() {
( Z( z+ _0 D# ?( ] - server.handleClient();
+ T- L. ~) O+ f1 d - delay(1);
) w( ^5 f1 L. w7 `' o7 M - }
6 I+ M: b9 ^* O- d% s - String doGet(String url){4 W. o% n7 w( K# t
- if ((WiFiMulti.run() == WL_CONNECTED)) {) Q1 z; f; R+ C) K( u( r4 m
- HTTPClient http;9 G) i- A! }2 H2 G
- Serial.println("[HTTP] begin...");- @0 p) t* ~+ g& m; S% K5 M1 D, ?
- if (url.startsWith("https")) {
% p" T. O% N0 G+ u; I% p I - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" W/ [' b% ]2 O5 l( e8 ^" g - } else {) p$ M) ~' z! W; u( ?& z
- http.begin(url);
( ?" g" {. v6 i) X$ k - }% m* i' J3 H$ a2 \
- Serial.println("[HTTP] GET...");1 ^' g) M$ l3 h
- int httpCode = http.GET();
6 W' {* v+ c- o7 L; k, u) _( K - if (httpCode > 0) {2 U+ ]' o! }9 e6 f- W4 U
- Serial.printf("[HTTP] code: %d\n", httpCode);5 H( a+ [, E) W( E- g! Y
- if (httpCode == HTTP_CODE_OK) {
) k$ b: t }0 [1 |7 G. w1 r - String payload = http.getString();
. a% n+ N3 K: @/ g, Y- ~7 A( V6 U - Serial.println(payload);
9 ~& y2 H' q& J6 `( O# w8 [. L1 W - Serial.print("\r\n");( }' K: E9 U+ N) a. ?& g# D
- return payload;
: y# @& i* }7 ^6 Y9 \ - }
, {4 S3 k# V8 C! o - } else {
) o9 @( c, r# n - Serial.printf("[HTTP] GET... failed, error: %s\n",
9 \- O4 B7 Y- A/ N; R8 {' G8 l7 J - http.errorToString(httpCode).c_str());
8 O- F! O! U9 R3 Q, [! \ - }# N( X) _" Y7 x7 U0 c
- http.end();* T- b- J; k5 X& }4 m Z; X
- return "";
. K( Q7 u2 Y( Q& B, r - }
/ F/ {6 h8 Z8 x* N! X7 g4 D - }
( k8 k* J& \/ t3 k - void mainAction() {
4 ~3 F4 t: e" U9 J9 H - // 发送请求- k' ]: ^, J r$ E# k
- doGet("http://google.cn");1 m! L. {8 u/ X3 A, [
- }
; w5 u/ m3 A+ o5 b B
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