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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)9 i4 h, V5 R2 \" b' R
- #include <ESP8266HTTPClient.h>
* G( L) h# T: @/ \* f - #include <ESP8266WiFi.h>; p4 K! q; z1 P: H X
- #include <ESP8266WiFiMulti.h>
3 F+ K4 Y* b0 m. x( i r - #include <ESP8266WebServer.h>
% F8 y7 q: c, B+ M. l s0 N - #include <arduino.h>1 x/ L+ c1 w; E; ~1 e# Z$ n, I
- ESP8266WiFiMulti WiFiMulti;: H! N- _ ?6 t+ @
- ESP8266WebServer server(80);
# V; z# X4 d4 o T, w* H. }$ w - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# H- Z. F) }8 w3 ]% }, a4 i - ADC_MODE(ADC_VCC);
) {$ }: \/ v0 p6 J - void setup() {
$ }. E% Y* n w) j- |7 a8 ^' M - Serial.begin(115200);
1 R9 [4 m; d. s - Serial.print("\r\n\n");% s/ R, c; I( n5 N
- pinMode(2,OUTPUT);
3 t( j3 C7 B6 Q- Z- C - // WIFI, D/ K4 A! |6 h0 {- Z0 e5 O
- WiFi.mode(WIFI_STA);3 P; z) G8 G% K( @: b
- WiFi.hostname("Sparkle");% n5 I# A$ E" i& `5 R
- WiFiMulti.addAP("wifi ssid", "wifi password");; e' V' G3 d7 U: ~) T0 K; [6 `
- int tryNum = 15;
$ L" F1 C, M8 `/ h3 l3 o - Serial.print("Connect WiFi");
7 E5 R7 s5 r' j4 W+ { - while (WiFiMulti.run() != WL_CONNECTED) {
) T' I `0 L/ @ - digitalWrite(2,0);6 R% i# m9 h1 d$ ~8 `( h
- delay(200);0 S9 z2 i; q' r k5 H# b m
- digitalWrite(2,1);
4 h( ]& k& e: p& B - delay(300);% ~# I% @# K' B
- Serial.print(".");
' x9 h6 q0 t% d - tryNum--;% Q5 r7 H* `# _7 F% Q$ j
- if (tryNum == 0) {
; _ P+ ~3 x$ Z: p - // 1min
& b9 p: c+ A A - // ESP.deepSleep(60e6);/ ~! p" Q! s& Y% i9 \% _
- ESP.deepSleep(0);6 D/ Q2 f5 S% ~7 j, q# A, y5 C/ ^5 M
- }
5 D- C y, Y4 y - } g- W$ _4 ?5 \# o" u
- Serial.print("\r\n");* X. S# a* t+ X( q
- digitalWrite(2,1);7 Y5 [. d* }- ]9 D4 f9 I8 h
- Serial.print("IP address : ");
0 M) g# e, M B* c" d6 L - Serial.println(WiFi.localIP());+ G/ b. Q A9 M" c" A
- server.on("/", HTTP_GET, [](){
* ^( _& U% U& g. S - server.sendHeader("Connection", "close");# c" p8 B! Q; Z# Z
- server.send(200, "text/html", serverIndex);% _, l/ |2 d" a$ [2 Y& I
- });5 |( o7 F J& |+ k" E1 C) O1 Y
- server.on("/update", HTTP_POST, [](){
; W5 h0 o5 q j% b7 S& K - server.sendHeader("Connection", "close"); x: x, @/ G3 q6 o! {- _* v9 n0 U
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, C/ h. T4 @, `& S3 ]9 }6 m3 P
- ESP.restart();
9 P( D N, I, e R3 w* z - },[](){
# D- U9 z: ]" f! E, t1 ~ - HTTPUpload& upload = server.upload();
n# l5 S3 x j' _% Q7 l - if(upload.status == UPLOAD_FILE_START){& J* Z. S0 n5 B6 D4 f+ b% D/ b& w
- Serial.setDebugOutput(true);5 C3 l! }5 E' H% p% U
- Serial.printf("Update: %s\n", upload.filename.c_str());
& }3 Z. U" v% s1 H5 L9 ^ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 d' H+ @) g! H7 N$ D - if(!Update.begin(maxSketchSpace)){; N% h' c# Y: Y, a4 m3 E( ~: W
- Update.printError(Serial);* m" q1 _: _# [* a: R* n4 a! n
- }- q3 j- g1 F! h3 O7 Y
- } else if(upload.status == UPLOAD_FILE_WRITE){
O' r/ Y. p3 a7 a: ^$ R7 v2 A - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ ` i9 r @6 m0 q" l - Update.printError(Serial);
5 `' e) |0 U* K! F - }
( c! f+ {! w$ ]; v) q - } else if(upload.status == UPLOAD_FILE_END){
* \0 w, e; n+ R; N' n - if(Update.end(true)){ U& N. R- q: s; e1 W8 Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! o5 C, {; K; w9 h; {: a - } else {
6 J L1 a2 g- k$ j+ u. V" Z2 N - Update.printError(Serial);" R7 @6 n' {( f! V7 `
- }
9 t+ U. w' p* o7 v5 A - Serial.setDebugOutput(false);$ w' s9 h. d# D/ s
- }* ~0 ], Z1 O) a5 w6 \# K
- yield();4 [$ b% ~5 S+ A
- });+ \, I1 a! h) g5 M* q+ J
- F9 i( S% J% z' z% i3 u; Z1 n2 I
- digitalWrite(2,0);
+ }' k- d$ t/ @" ]9 r% K - mainAction();
9 v2 L9 Q% \7 {/ V" T) @6 t/ } - if (digitalRead(0)){) C6 [. e$ c; Z. N
- ESP.deepSleep(0);
. O# W9 a8 p5 U0 c! {# b# ~ - } else {) @8 D$ [1 i( b4 P# ]
- server.begin();
0 ~) Z6 @1 E: Z, Y4 y - }+ X" G+ A. D% U; {
- }
1 {2 m- T1 v& u - void loop() {
7 d; V8 h1 y5 U j6 j" p; J' Y - server.handleClient();
8 w% Y/ l- p2 A' T l - delay(1);
- d& ~+ v' u# F# o - }
( Q2 W1 G6 F( @- Z, w - String doGet(String url){
) d9 o0 t z1 x6 g+ \" w; A - if ((WiFiMulti.run() == WL_CONNECTED)) {
7 \8 D2 X, z2 U' G: y8 u - HTTPClient http;) k( W* W3 y/ Z1 z w
- Serial.println("[HTTP] begin...");
) ]4 G8 } o# e; a4 w. T - if (url.startsWith("https")) {
( _8 [0 c5 I+ }% w - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
8 X, y5 V6 |, b( b0 R8 [ - } else {0 e% F$ ~0 R; s+ X7 q3 }" z" C" i
- http.begin(url);% n' A0 V [. ]0 B
- }
% O$ Y7 T+ S2 p4 Z - Serial.println("[HTTP] GET...");
* m0 y) s8 O5 R - int httpCode = http.GET();
2 B/ t+ C( X: P5 g" s) T4 I - if (httpCode > 0) {: L4 H8 b9 ~: t/ R1 T
- Serial.printf("[HTTP] code: %d\n", httpCode);
* \: O3 t; E- P) T. d) e q - if (httpCode == HTTP_CODE_OK) {
' ^3 c. A% e+ ~8 a% G. N8 ` - String payload = http.getString();
- V' f4 X; n, \3 K; C5 z x - Serial.println(payload);/ \: m0 ]; o5 Z6 m1 @: M
- Serial.print("\r\n");
- [5 K0 P0 n6 T) w - return payload;8 W1 W4 W3 o& U
- }
* n8 p4 @$ @& w# k$ [$ |/ o8 P: i - } else {
: V, Z6 F1 h) D5 ~% B - Serial.printf("[HTTP] GET... failed, error: %s\n",7 k" J! ]( S% S% q
- http.errorToString(httpCode).c_str());
# s* j5 Y& z* G8 H9 c! L- { - }
& G7 C) A A; ]$ u% |$ t% U( Z$ t - http.end();
7 J; T* ?* e8 _8 F - return "";
6 X5 L/ |5 N: j& } - }. a4 s4 p, [' G! Y
- }% H: k% F0 \4 X
- void mainAction() {
; _( P) n. v3 G- b7 z+ c' T i - // 发送请求' [& R; s c" R. v) H- ^
- doGet("http://google.cn");
& @! o* \$ D3 ~1 f1 t - }4 \, Y9 l4 X, b, {! f% P; Y0 x1 F
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