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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)+ ^# I! o. Y. i2 [, v# n g
- #include <ESP8266HTTPClient.h>
2 Z8 n. g7 _! ^+ M$ e% K" x - #include <ESP8266WiFi.h>
5 g7 W9 G! y% k6 n8 }" P$ i# v. E - #include <ESP8266WiFiMulti.h>5 I, ?% D" {, S% t6 M
- #include <ESP8266WebServer.h>
9 n; C1 `6 f+ V8 z2 U - #include <arduino.h>! ]- I2 b- S7 t) ^" w
- ESP8266WiFiMulti WiFiMulti;
1 C. r, T3 t( f' p - ESP8266WebServer server(80);3 \5 i n2 ^6 o9 W# ]( i" z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; U: e% r) v7 t' ~, Y; @3 j% O
- ADC_MODE(ADC_VCC);8 O7 H" |- @- D+ d( R) F
- void setup() {
& B$ S* j: e. y9 @8 Z3 T/ D - Serial.begin(115200);
& ?" n5 C3 T! l9 j - Serial.print("\r\n\n");
1 V( i2 e+ b& ` - pinMode(2,OUTPUT);
# D$ I2 J6 A; ~# q4 ~ - // WIFI
: i! T$ C% d$ e/ L$ V2 L7 j+ V S" U5 K - WiFi.mode(WIFI_STA);
# _' D; z& M2 _# B/ A - WiFi.hostname("Sparkle");, @# Z3 g$ K9 D$ o+ [. O6 \6 r
- WiFiMulti.addAP("wifi ssid", "wifi password");
5 B$ }5 I& u& S! Z; W% Q - int tryNum = 15;
; I6 O1 j/ I- K( p5 T. _ - Serial.print("Connect WiFi");
$ H# Y# _6 H8 u) D - while (WiFiMulti.run() != WL_CONNECTED) {5 G, ?+ A& _" `" E5 T
- digitalWrite(2,0);+ @8 c: K& f" J8 w2 S
- delay(200);6 K# t2 c% l) z$ U) u( U* I
- digitalWrite(2,1);
3 X& ?# m& R4 v+ r3 s5 h - delay(300);& h9 v& V) Q% A5 A/ o+ T
- Serial.print(".");) L: _* c+ _( \( j
- tryNum--;0 a5 I4 C. ^% l1 A+ M
- if (tryNum == 0) {
: I- R7 N& }8 U) h - // 1min
: ~, S n, X G; R, ` - // ESP.deepSleep(60e6);
, k$ V2 Z' A- a1 {) f( c) S V - ESP.deepSleep(0);" [1 k$ O: T- J8 a, i
- }: D8 d% j* x" y6 {* b' W
- }' E# s# T& N" o7 Z% o9 d
- Serial.print("\r\n");& Z5 V& c; Q; k6 E# z, O
- digitalWrite(2,1);: z: z2 u8 q1 A" s# a4 P0 F% V2 \
- Serial.print("IP address : ");" N: B* |' Q' B2 Y
- Serial.println(WiFi.localIP());
6 E( r' ]8 A! M+ [; f - server.on("/", HTTP_GET, [](){
& H0 t6 s. K- e" G8 s& \ - server.sendHeader("Connection", "close");& U, K5 m$ _ m) ?, P% s+ v Q) _4 f
- server.send(200, "text/html", serverIndex);
0 U$ O4 A9 g1 V9 N - });; J8 B; j* i& b# M. ~, F
- server.on("/update", HTTP_POST, [](){, a+ S, m3 h# o! U9 m) `, ~' Z( x
- server.sendHeader("Connection", "close");
3 } | z* {; Q# [( ^4 z5 w2 A8 K - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 h& y' d, _: b$ O" {2 i0 y
- ESP.restart();9 P0 l1 y+ j4 b6 e* c
- },[](){# p/ E8 G& Y8 D
- HTTPUpload& upload = server.upload();
3 q4 G# _ W8 F& @$ ~ - if(upload.status == UPLOAD_FILE_START){: o% u) K' [; E5 m, n/ L
- Serial.setDebugOutput(true);
6 y3 \- U ?9 ~$ r7 e S% s- t - Serial.printf("Update: %s\n", upload.filename.c_str());" @2 F& A! J/ A0 ?* b7 l+ i7 g8 g
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, W8 C/ w$ f- B
- if(!Update.begin(maxSketchSpace)){
$ ]3 Y/ B5 H/ S - Update.printError(Serial);) w3 L' L& J: `
- }
; J1 h" X: u2 y - } else if(upload.status == UPLOAD_FILE_WRITE){5 j% l5 p( X! p8 A6 w7 E8 d! i& d
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: x) T' [2 b2 z, k- Z. H( F& o
- Update.printError(Serial);
# v: {: _+ A1 |: W - }
0 x: [; Q3 i- s# x- k( A - } else if(upload.status == UPLOAD_FILE_END){
! `& u# [9 g4 ?% K# m& u d - if(Update.end(true)){
" t0 W! F2 h' X/ ` - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 d- R, s c: F( q; A# t. I - } else {
; X) \, v8 E* Y2 ]. M, { - Update.printError(Serial);: J' `: x4 {6 I. @. z* J6 K/ i
- }! V3 t+ B$ n: ~
- Serial.setDebugOutput(false);+ L+ D# ~6 f3 p4 e
- }- e) o+ z1 F7 R6 R) }$ E4 P
- yield();$ B! I& W+ o, I% K- Q
- });3 ]: } i/ e( t0 P4 o: p# p2 R. V
-
1 f6 X: w5 k( [- ` X6 { - digitalWrite(2,0);8 K4 L( j' g2 h9 S1 h. A" X, G
- mainAction();
7 ?& @' v3 s% G. y3 { - if (digitalRead(0)){4 e4 X$ |7 F# A/ E3 M: ~7 ?
- ESP.deepSleep(0);
$ N* b b$ h1 L- x' \7 u+ w9 a - } else {! K4 W( Q& R9 R' w; ^
- server.begin();
) f0 [0 L- h( P0 [; C& H5 Q$ ` - }
9 I: q3 W! L7 @/ v2 m - }
6 A; h }1 T, ]8 N, E: _) Q - void loop() {" k. g+ Q: J% e( |% J
- server.handleClient();
" u8 I" C J1 E1 `" ` - delay(1);) x+ J( J8 w0 P' |8 w/ R
- }% o' e* i) t# W* p7 E* @
- String doGet(String url){7 w4 J6 p9 n$ [2 c
- if ((WiFiMulti.run() == WL_CONNECTED)) {
9 h% {8 e9 Y9 n; k2 ~ - HTTPClient http;
5 y6 U# u5 n' W+ [( _ - Serial.println("[HTTP] begin...");
/ ^4 ~1 i# r+ t9 z4 V - if (url.startsWith("https")) {. f% Z, k5 w/ H$ b: R$ S8 P9 T5 y" M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 e y, l! x& d3 G, X, @8 ^) M - } else {
) U. I: L# C2 t: B$ @4 l - http.begin(url);
# R7 i1 p1 J; h3 x - }9 U$ M3 ~% c0 C M; g
- Serial.println("[HTTP] GET...");
/ w1 _+ ]1 N" b5 {4 U - int httpCode = http.GET();- ]2 u3 {( U/ n6 G7 j% H& Z$ C* N
- if (httpCode > 0) {4 K$ u- }3 z/ R/ ~) a) t
- Serial.printf("[HTTP] code: %d\n", httpCode);( _7 T: \ g8 |) ~
- if (httpCode == HTTP_CODE_OK) {
9 o' |7 k- T t - String payload = http.getString();# i& t+ X& Y3 K. c
- Serial.println(payload);7 g- }0 U0 G& Y, f
- Serial.print("\r\n");) P \4 W" |. _* I- N) I
- return payload;
8 n9 g9 P; _9 _ - }' }2 h' E- P" z
- } else {/ h! ^2 G! x( A) h
- Serial.printf("[HTTP] GET... failed, error: %s\n"," i1 {/ c, K0 p2 j) M5 `4 e& U
- http.errorToString(httpCode).c_str());
. d& X5 u: W! O( y. r, w; Z0 R( l - }
- `; }1 q& m7 V - http.end();
) ?+ V4 _8 d( C8 K7 M9 S - return "";+ i4 O: K; |# ~1 B6 g3 n0 d
- }
+ D& B1 ]6 O+ Z - }
+ \$ d; Y# z9 y - void mainAction() {* Z2 W$ ^0 {0 v' ?5 \$ J
- // 发送请求
8 Z9 b; a0 N6 w p8 ~+ b! ~# l+ p - doGet("http://google.cn");
9 g3 P% Z3 u" q0 {: w" c8 w$ W - }
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