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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): t1 o* P9 C2 P! l8 E' l
- #include <ESP8266HTTPClient.h>: P& Y% }& S) c3 i4 t
- #include <ESP8266WiFi.h>5 x( N5 n# H1 [0 J! h
- #include <ESP8266WiFiMulti.h># V0 }. D9 U" c: g: W, |+ H# t
- #include <ESP8266WebServer.h>
1 i5 u8 i! d. N( q - #include <arduino.h>4 ?/ {8 `9 v% u' S+ j
- ESP8266WiFiMulti WiFiMulti; I) o' S) f7 s
- ESP8266WebServer server(80);5 G" s4 h* ?3 H5 c9 g
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 D/ Q0 z7 u8 Y3 C
- ADC_MODE(ADC_VCC);
% {& d8 y1 e% W- M( d$ I' X/ Z - void setup() {; D$ N$ B! }9 b2 Z8 _) y' W
- Serial.begin(115200);
" f+ V9 u5 Q/ X9 F$ n# ~( R: ] - Serial.print("\r\n\n");8 N# |0 b, n! K( Z
- pinMode(2,OUTPUT);
$ {) ]6 i$ Y" @/ K - // WIFI# ~% T* }0 {9 v# @" A( b! L
- WiFi.mode(WIFI_STA);
[0 b2 W% R& j9 j; I2 _ - WiFi.hostname("Sparkle");
, ?, M+ J( A9 J- i: D# H; s - WiFiMulti.addAP("wifi ssid", "wifi password");
/ Y. [) n T2 w( T9 x - int tryNum = 15;
2 g! P# T* ?1 ` - Serial.print("Connect WiFi");
; u, q1 X* j* m( Z, a# N - while (WiFiMulti.run() != WL_CONNECTED) {
8 ?: [' C) P7 ^: K+ X! ~5 h, M - digitalWrite(2,0);: C9 z5 M% C: W! y* x
- delay(200);, W& L. F; h: ?% i: x
- digitalWrite(2,1);
7 G4 h8 I( [- A) }4 V - delay(300);# H" r6 ^3 A4 |: T
- Serial.print(".");
* K$ I! h3 Q0 Q( _# P4 K - tryNum--;
9 ] l9 W3 ]# Z% G; m+ ~/ J6 o6 T, Q1 }0 y - if (tryNum == 0) {
8 P% q9 A6 f, Y, r( H. @ - // 1min) v0 [+ h6 l' X; u! X2 e
- // ESP.deepSleep(60e6);
+ }" ]" {3 |1 b E - ESP.deepSleep(0);
& k4 |0 ]0 m4 R/ @* {* b - }
- D" K4 R# J$ F, a; ^% B - }
/ j5 W* F* V; n& Z1 ^% v( [/ x - Serial.print("\r\n");5 W- c: y+ B6 n b
- digitalWrite(2,1);
' S( C# z) t$ C' V- T - Serial.print("IP address : ");. W; v! z, s& k! J* j
- Serial.println(WiFi.localIP());4 }: p; b, G; C, K
- server.on("/", HTTP_GET, [](){
& f' H3 Z- h& D# z/ y4 ]8 ~4 F, z - server.sendHeader("Connection", "close");6 }7 `1 e" q- _6 k! F
- server.send(200, "text/html", serverIndex);
8 E* L, c3 ?; ?3 p - });$ ]; G/ u, P! g+ P. ?' O, @4 x
- server.on("/update", HTTP_POST, [](){4 k1 U, T: G, L" a% D* u6 Y
- server.sendHeader("Connection", "close");
7 g4 a3 ?& b& x- a - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 A$ C+ r' C/ }! g - ESP.restart();" I2 Q3 T |* W9 Z& h
- },[](){" m" t6 o. |! C7 \* [" B2 f
- HTTPUpload& upload = server.upload();& v0 s9 A1 y0 O) ^* D6 k! `: |- g
- if(upload.status == UPLOAD_FILE_START){4 I: u! y/ |7 |" Q' C
- Serial.setDebugOutput(true);/ J2 k) U' Y0 \4 y# U: A
- Serial.printf("Update: %s\n", upload.filename.c_str());
0 q9 d4 s/ S/ H( K; c - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 b6 C: D& y+ X0 _: |/ w5 h) Q
- if(!Update.begin(maxSketchSpace)){
" i1 _1 H1 L% m7 k% q. j1 X$ g - Update.printError(Serial);
, \$ G9 M H# v9 ^7 y0 C% x; u - }, r" h. P% E: z9 a4 k& R6 I5 z
- } else if(upload.status == UPLOAD_FILE_WRITE){ i/ ]0 r% v1 z6 }. @$ b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( C3 |3 j4 ]: Y- i- O ~" ?
- Update.printError(Serial);- q0 ^! V4 s+ Z1 B
- }
1 s6 U1 L3 R- [* ]" y4 f - } else if(upload.status == UPLOAD_FILE_END){5 C" l2 t8 n. e& y4 W) e2 F( s! F
- if(Update.end(true)){
u7 s, z( I) S; H7 P& B - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, @6 s( s7 t- s- l# A1 o
- } else {9 ~3 i" D! X9 d, k. _
- Update.printError(Serial);" `% S, k: j* x1 v+ x7 _7 \
- }$ K- O* Q% r9 n6 n/ ~* P4 F) K
- Serial.setDebugOutput(false);' N2 X3 {6 e. x' H/ C
- }9 n* U: p$ m& [$ S
- yield();
1 ?4 ]7 e: O2 d' P/ G - });* }" y; s* T2 y5 \2 Z
- 1 e: M1 V% ]) [: `- O- V" Q7 ]+ [- M
- digitalWrite(2,0);
! f3 |5 [8 b" {7 S( B/ T - mainAction();7 Y x7 S2 l+ B4 d( \3 v
- if (digitalRead(0)){
5 |4 R, W9 I4 l0 x9 u0 ] - ESP.deepSleep(0);3 i( n; [( n# f- N& h
- } else {! p" u+ G6 Q+ v
- server.begin();
9 s+ [2 S( W9 }8 [2 s# @* ^& l - }
1 w- Y1 _* W6 f3 v* n G7 Y2 N# ? - } M: G5 M7 Q1 R5 h
- void loop() {
6 X3 I ~- R( J) e4 d$ z+ Q- ] - server.handleClient();$ i% J8 x$ z+ Y. n, k' Y% m" w8 I! V
- delay(1);
& _+ L$ v1 ~& L! B/ o% Z% Y - }( J5 a. @4 X9 Q" ?& v) i0 u
- String doGet(String url){: _9 s7 o. F1 G7 J
- if ((WiFiMulti.run() == WL_CONNECTED)) {' C3 M0 c6 B: ~0 W
- HTTPClient http;
& q3 ^0 L6 F9 M$ M @ - Serial.println("[HTTP] begin...");3 Q2 H1 s, g8 ^8 o5 `
- if (url.startsWith("https")) {
5 f' s L& ?& q' W2 \% W) o+ ]3 Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, m4 L0 n. v0 c9 N, n - } else {, x% i8 n0 o; K2 `3 K
- http.begin(url);5 x! a6 V" b9 z2 x; C4 e
- }, {. g) c0 K) h
- Serial.println("[HTTP] GET...");6 ^6 n& ]: D% K- e) C0 y& w
- int httpCode = http.GET();
j$ v2 Y+ g6 c! }9 _' o2 I - if (httpCode > 0) {
# B0 v' I: C1 V& J# d* V - Serial.printf("[HTTP] code: %d\n", httpCode);
/ U( x! f0 @2 `7 x - if (httpCode == HTTP_CODE_OK) {
. s3 s; h; ]$ B: O - String payload = http.getString();$ a( H- f2 d8 c7 X' U
- Serial.println(payload);
2 r# I+ }. Y" {% ?2 B - Serial.print("\r\n");
4 c; Q) s+ {' f: u P1 Y, f7 K - return payload;( H' G( D3 g5 }# ?. i) t4 k5 d
- }. E Z( g# \% p$ J- S. S* f
- } else {
: h$ z6 V: ?3 Q/ Q - Serial.printf("[HTTP] GET... failed, error: %s\n",
4 i6 T, M( D8 [ - http.errorToString(httpCode).c_str());. J1 w/ x( w: J" a1 S) y
- }+ ~% K. `- k, o& }! U
- http.end();
' O8 \) |' `" M( t. m( c - return "";
4 f: r0 i# ^5 Y$ c2 w, ` - }, n( a9 M, Y0 D4 S' ?
- }
# V4 _# [% t" v: G8 {8 b5 r - void mainAction() {
( L' q2 {% ~9 q0 e2 B& X - // 发送请求
; v: J$ o# `3 L& [; B$ O - doGet("http://google.cn");
0 l9 g1 {$ B! X% O# X# L3 L6 m - }6 R" G; R( Y" w* L; a% M/ f! ?
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