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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)
/ j ?+ O [( C% V# K- #include <ESP8266HTTPClient.h>
- H) c! s& J( v3 }+ b( ^4 V. H1 n& H4 n - #include <ESP8266WiFi.h>
8 m; |- v+ Q! t! }, b3 M - #include <ESP8266WiFiMulti.h>2 j+ u8 C* c& d4 ~' [& D* q$ z! n5 d
- #include <ESP8266WebServer.h>
) Z3 ?3 ^; C# ^& g - #include <arduino.h>
1 }, M2 x% S3 _% W9 @3 N6 ? - ESP8266WiFiMulti WiFiMulti;; `+ A" c+ z+ V" P7 C R3 l
- ESP8266WebServer server(80);% [; e9 o3 m2 Y0 {& l
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; v' M5 g0 {+ ]& A8 S6 `
- ADC_MODE(ADC_VCC);
- {: _2 ?" I ?% F$ O8 j, P - void setup() {! p; e1 z* \5 G* x
- Serial.begin(115200);3 Z8 R4 A8 V X- t
- Serial.print("\r\n\n");
; F: q2 d1 T% z6 I3 ~ u( [' T' C. d - pinMode(2,OUTPUT);
# q6 L9 {6 p, j2 B - // WIFI6 f9 o0 p( }* |2 ?! {8 B2 P/ [
- WiFi.mode(WIFI_STA);
8 m& z7 x( b# ?. [( G6 g) B9 M - WiFi.hostname("Sparkle");
/ J' D8 z( ~ @# v# p - WiFiMulti.addAP("wifi ssid", "wifi password");7 ~8 Y7 o) ~& U& M4 P" |* ^
- int tryNum = 15;
4 `! z3 e D% D. t - Serial.print("Connect WiFi");# d. i8 H$ ?4 q3 V
- while (WiFiMulti.run() != WL_CONNECTED) {% F" K4 i$ L8 l! b! e0 {
- digitalWrite(2,0);: j9 c" |5 f$ C, d7 v
- delay(200);
! N. o. B3 n% }$ ~8 n - digitalWrite(2,1);- ^6 ?, T) I, ?2 }% D; O; c; x- s& R# q
- delay(300);# q2 H8 H& c; x+ H) a
- Serial.print(".");
t T; M, g: Y, n/ m( Y - tryNum--;& L; ^" Q# q- n" _% T* R" c/ G( q
- if (tryNum == 0) {$ j( C6 Y, c4 I* @, S: }
- // 1min# X, m$ M; H7 p( t X2 X: Z- p
- // ESP.deepSleep(60e6);
# \: {: [( j4 W# ^( ` - ESP.deepSleep(0);
1 Y7 t; e' M/ _5 s( F - }: p, q) r$ }: H" T5 i
- }
5 z8 R' m2 S( q3 D) ^: s - Serial.print("\r\n");
, R0 a u i5 _! j; v - digitalWrite(2,1);
% p- |+ ~ U. E1 H6 B M( J6 F; L - Serial.print("IP address : ");
1 u* H: E5 r; |+ h8 p9 d - Serial.println(WiFi.localIP());/ d( [" O7 C! Q9 \
- server.on("/", HTTP_GET, [](){5 q! H9 c2 x4 j C, m
- server.sendHeader("Connection", "close"); S1 j# X$ ^. x0 B2 \; N& s
- server.send(200, "text/html", serverIndex);
- T) f# B2 Y5 \% S* F! P - });! e* l& s4 {& w" d q4 J
- server.on("/update", HTTP_POST, [](){# E, D7 g2 Z( y3 C# k
- server.sendHeader("Connection", "close");
1 J, O0 H7 ?5 m1 D* t. } \% q/ u/ a - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 b1 m/ n: k$ p- y - ESP.restart();
1 E4 t9 c. Z9 C0 B' h - },[](){# M* k' f* q2 o6 y
- HTTPUpload& upload = server.upload();
/ Y' ~3 A. r4 v8 r; ~- q3 n - if(upload.status == UPLOAD_FILE_START){
% @4 c. k; B; W$ ^9 t3 y' ~ - Serial.setDebugOutput(true);
% G0 }8 Y& u$ g% s0 o - Serial.printf("Update: %s\n", upload.filename.c_str());+ m9 U0 p" |8 w, R/ A0 ^6 S
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 F0 w( x7 E0 c% p9 q
- if(!Update.begin(maxSketchSpace)){" g& ~+ T$ r$ m Y9 s1 S
- Update.printError(Serial);) o" y, O% C4 j1 C6 Z& I8 u& T
- }2 V# k: t9 M/ l) ~9 ^
- } else if(upload.status == UPLOAD_FILE_WRITE){& _- {2 E8 w& D* r# D5 k, }" V; D' o
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* y0 j. e; G+ v" L5 J U7 v - Update.printError(Serial);
$ [ @8 p* n& A% v2 \, ^; T7 z - }
8 x( h! T7 i6 P7 v; s - } else if(upload.status == UPLOAD_FILE_END){
- M/ X1 s1 Z7 x9 A0 r& s$ n5 N. H - if(Update.end(true)){
2 T. v& G1 i: q! w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 [, z# i# Y5 [2 v" q) p - } else {% z, _0 e4 M: x) v4 l
- Update.printError(Serial);4 s0 _2 F, e) U+ Z
- }
3 q7 u/ @. _8 U1 @- P, O- C; l - Serial.setDebugOutput(false);
) D0 e# d# q& N9 U% C - }
* G' ?+ l7 `: H - yield();, j1 F) I( }+ @% b2 Q
- });
% U/ T4 F7 c, r( Z; Q0 m - 8 Q N: \" f' u! m
- digitalWrite(2,0);
- m6 k* {0 Z5 F T9 a% ?) J7 R - mainAction();1 g. D) A7 m' F( R
- if (digitalRead(0)){
% n1 e1 ^( g+ ` - ESP.deepSleep(0);
$ G- A6 E/ x7 ^' v- n+ S6 r - } else {
5 E+ B. f* `. ? - server.begin();
& d& I9 b5 t% k. }% ` - }
2 Y' |7 q+ Z* C6 r- ~! D - }1 G; U' k6 _/ _/ S h& U% w
- void loop() {& V* W+ t. g0 _1 e
- server.handleClient();
6 C" [7 N5 f* y# Z8 k$ g - delay(1);/ g; P4 ~2 d b! L' F+ I; p
- }, r, L1 a" q* R
- String doGet(String url){, E4 y3 W5 M. M4 n
- if ((WiFiMulti.run() == WL_CONNECTED)) {% b/ K/ p2 e6 |* J2 S' [% s" l
- HTTPClient http;
* G9 l. w" |" L+ ^$ s6 C - Serial.println("[HTTP] begin...");% L6 u" C o0 o+ F
- if (url.startsWith("https")) {
& K$ U' _: E, ?2 \( Q- ? - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 {0 ~' {, L; v1 V+ H - } else {
% \0 C& N8 |$ n# z, X# @/ ~ - http.begin(url);- v1 {8 q" c# |' _0 O) w. [
- }
4 H4 d9 N9 q% s/ |& d5 v - Serial.println("[HTTP] GET...");1 s" O2 a1 j5 |) Y" [2 z
- int httpCode = http.GET();1 d- R$ {1 E, k
- if (httpCode > 0) {
% Q |3 L7 W' h( o - Serial.printf("[HTTP] code: %d\n", httpCode);* v0 M. T/ l7 [% A( h$ {0 y) y6 h
- if (httpCode == HTTP_CODE_OK) {
4 S2 [6 H% S6 [, w - String payload = http.getString();
, ]1 `/ u: @6 K, J! g2 N5 E - Serial.println(payload);# H- a+ F6 o5 h$ x
- Serial.print("\r\n");
) V2 G) ~) x5 Z3 m! c1 C; n# R - return payload;
W/ {% H: [, Q; q r - }
, ~# B, A% X7 G9 y( [ - } else {
* ?7 r/ p3 Q3 F& U; C - Serial.printf("[HTTP] GET... failed, error: %s\n",; o* v6 Z2 X/ S8 f8 l/ |* s
- http.errorToString(httpCode).c_str());/ w* E+ ~! H9 M) c
- }: P+ S. G' \% Y5 w
- http.end();, o2 ^6 U4 n9 a" n) [
- return "";
# X+ n4 B" B+ c# O. i& L2 ? - }
8 ~# {' J/ E$ G2 I( B0 S- e0 \& L - }
6 r& U5 y3 H6 Q( _4 [7 A5 I" D* Y" h - void mainAction() {
U: r6 J0 s* f: I5 c - // 发送请求
6 B& P& Y1 }/ p' O - doGet("http://google.cn");- H, ?2 ~8 S" M+ ]
- }
/ n+ w( M: V- o" x7 K8 i) r5 g" W
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