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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)8 F5 P* V4 q8 A3 V+ O* m5 j
- #include <ESP8266HTTPClient.h>7 X# d2 {2 e, I
- #include <ESP8266WiFi.h>5 K( Y" R! l) q4 |% o
- #include <ESP8266WiFiMulti.h>& P, _' { Q8 P4 ?" g
- #include <ESP8266WebServer.h>& |3 E) l! X3 N6 A, P
- #include <arduino.h>3 h. Q% ~+ Y2 _0 {1 D/ q8 u, \
- ESP8266WiFiMulti WiFiMulti;
- c% j: Q' X1 A$ P4 A- ?0 p - ESP8266WebServer server(80);
& U z0 n3 N/ C- [ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 X: h2 t A) |3 L1 r8 U - ADC_MODE(ADC_VCC);' h" f) s5 ]7 L2 J6 |" b) y: g
- void setup() {
, ?. W! K5 u& M3 s - Serial.begin(115200);8 a+ T0 `" G8 x; X' }
- Serial.print("\r\n\n");
( t0 L1 ~# v+ \( f- A1 U - pinMode(2,OUTPUT);
* g& P0 T, |5 q - // WIFI
- R! d6 l- x) T( I h - WiFi.mode(WIFI_STA);
( u+ M& ^' r9 n1 L/ v8 o% O - WiFi.hostname("Sparkle");( J: W V+ R# ?2 j- A
- WiFiMulti.addAP("wifi ssid", "wifi password");' l& h; J7 p* x6 Y
- int tryNum = 15;8 X$ a! S2 X% f0 z. w
- Serial.print("Connect WiFi");7 I7 W' _7 W; u2 @7 g& L
- while (WiFiMulti.run() != WL_CONNECTED) {; \# r4 S) e+ ?* x ~! x
- digitalWrite(2,0);
! U& j, y' N5 }: f" j% }$ \ - delay(200);; \- p, a9 H+ `7 U t' L: x
- digitalWrite(2,1);
1 w# D9 `5 i4 A+ q' Q7 J: B% j) j - delay(300);
; v( W5 q d0 h3 O5 \ - Serial.print(".");
6 F( a- H: `% t; K/ `2 ^ - tryNum--;
& b5 u$ {- i& [* l+ Q - if (tryNum == 0) {
; }& O' i$ W: P, J1 v - // 1min
9 f: N$ a( J. d' G - // ESP.deepSleep(60e6);' A+ ?; t. s8 \% R4 i3 o; t/ y
- ESP.deepSleep(0);9 p0 K: M2 p; z" \. G+ P" `
- }0 x0 @ p1 t: O0 _
- }! a5 X+ [- G' d- G: u
- Serial.print("\r\n");# D* X V1 R/ c
- digitalWrite(2,1);
x3 x; L8 _" j9 B - Serial.print("IP address : ");, C5 T5 B, N$ ]- {! J5 r
- Serial.println(WiFi.localIP());0 o, B; }9 \" ]+ _$ h/ M# l
- server.on("/", HTTP_GET, [](){1 m8 s: I/ A9 a- ^% I& P1 v
- server.sendHeader("Connection", "close");
$ b" _4 y- Q2 p( ]& \4 M - server.send(200, "text/html", serverIndex);
- J! E4 C# R/ ^: X5 l9 X - });! h& p6 J) f e. k& {
- server.on("/update", HTTP_POST, [](){6 M H# f2 `9 F+ e2 C+ o6 Q
- server.sendHeader("Connection", "close");
5 ?$ ]9 i$ |, ?/ C# K6 b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 _. S& }7 V' \8 _! C3 o" S( L - ESP.restart();
# q( W' P/ ^: e6 w) ~9 a- f - },[](){
& w0 o" Y( `+ y/ B - HTTPUpload& upload = server.upload();" P) ]$ _. i# r7 B( x. Q
- if(upload.status == UPLOAD_FILE_START){
* M! ?" b) u1 E; V" w5 z - Serial.setDebugOutput(true);+ Y7 n6 a; \0 T/ b, b( m2 M( O1 G
- Serial.printf("Update: %s\n", upload.filename.c_str());: L1 [7 k% A; c. t) @# i' k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
3 Q% D. N6 `' h- y - if(!Update.begin(maxSketchSpace)){, \% X7 g5 L g9 j' f+ O' ]5 L
- Update.printError(Serial);3 |1 {% b& [$ v1 h! f
- }$ Z! k7 W, L+ p5 U' F( @: _: q
- } else if(upload.status == UPLOAD_FILE_WRITE){
* l! M# s: ]3 b; i# U - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 Y4 J0 p* L, k6 A+ m6 z - Update.printError(Serial);# D8 [2 @0 }$ ]4 B/ j" Q4 [) X
- }! s1 h5 H: N% l% {1 ~
- } else if(upload.status == UPLOAD_FILE_END){$ ]9 @" |, `/ {. s$ ^& v
- if(Update.end(true)){) h; X5 m- _* x+ U/ r7 m+ j
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& f) _+ e& \4 U( z6 `
- } else {$ O4 C+ }0 H4 M9 w9 d+ `, I; @8 o' C. x
- Update.printError(Serial);
6 |( P6 M0 G9 b4 B' C1 ^ - }2 |% E' [ h4 ~
- Serial.setDebugOutput(false);
3 D* }& Y1 c) n9 h8 J$ G5 \: p - }
% y( D0 J% o% e5 l. j8 x - yield();
0 Z! |) F% l3 o8 L, X4 e6 n2 t - });0 t- t7 l) c' F2 `2 G+ A8 L
-
6 ?5 \) m9 O% R3 H8 s+ a. }+ s1 q - digitalWrite(2,0);
$ l/ P. x! i" t" {( T - mainAction();
% q, V' P1 E" Q - if (digitalRead(0)){3 {0 d2 u5 @% g* A5 Q3 S% I& J
- ESP.deepSleep(0);
0 a& y0 g0 w+ m' \4 |' Z# c - } else {
7 Z/ }* u: f* w k; H! J$ }9 P/ o - server.begin();8 {; O/ Y' Q5 c) T$ J( ?/ y
- }& i$ l+ [& Y: C( m
- }
/ H$ G( p q# N. s8 g! m/ ~* e; z- b - void loop() {
n6 e) d, _$ g' O/ C- y - server.handleClient();% t3 k* d5 h& t j- M7 `+ B: B
- delay(1);" s' y2 t1 C8 e2 `. G
- }9 ~! f3 k4 o3 K+ D& S- e- A
- String doGet(String url){
; U1 R: p8 l) w. L - if ((WiFiMulti.run() == WL_CONNECTED)) {' e! Q& n5 s! C4 o" ?/ B
- HTTPClient http;3 Q% v/ q. d2 }0 I/ T1 s. n
- Serial.println("[HTTP] begin...");
2 i% Z& ^+ u$ p2 g - if (url.startsWith("https")) {
& G) x6 W: @8 Q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 m& p' X( h$ r) b6 C7 B& @* H$ u. i7 g
- } else {
1 L; p( j; H% B. M - http.begin(url);( W" J- Y+ |, i$ L1 c9 k- t
- }9 n' N, c7 k5 A! L: g; ~ w! d% {
- Serial.println("[HTTP] GET...");0 M! j3 L4 y7 G' O
- int httpCode = http.GET();' i; A. ]) j ^; @
- if (httpCode > 0) {
* s1 j7 y1 J/ J% B; \, v2 s5 { - Serial.printf("[HTTP] code: %d\n", httpCode);2 u0 L" o, g D& {4 B/ Y; q
- if (httpCode == HTTP_CODE_OK) {
# x! M' v& M" G0 b - String payload = http.getString();5 O+ g& S, s4 d; I: `, h
- Serial.println(payload);
, c/ E8 e: V" j* I b - Serial.print("\r\n");
* B8 w5 _. W" Z* \ - return payload;* t* y+ I7 f {' p
- }4 J% T# A$ h/ z. L
- } else {
) T' p* \; W. Q5 v( k2 C. a - Serial.printf("[HTTP] GET... failed, error: %s\n",
: \; U+ i r" p - http.errorToString(httpCode).c_str());
& _, S# F$ _' S+ ] - }
) E& T) \6 m i - http.end();$ X7 x# `1 K1 N; h4 b
- return "";. c" s: Q/ O+ q! g8 K3 @" ?
- }: r3 r6 D) H% s# \
- }7 c2 b6 ~* W% ]5 f
- void mainAction() {/ M2 b8 w, I6 q; x! w
- // 发送请求
( P: j; J( e. ^! t9 @ - doGet("http://google.cn");
6 O- ]0 j$ D% m' L% c - }
. i3 q! V' U! @/ i A- k
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