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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)
) b( t) F) O* @/ M- ?, U4 Z& H- #include <ESP8266HTTPClient.h>
; b* A, m; t8 x& n3 Y, ] - #include <ESP8266WiFi.h>- Y% w+ b/ a; ]& L+ N1 W
- #include <ESP8266WiFiMulti.h>
J$ T: t9 d1 ]) I* G o - #include <ESP8266WebServer.h>4 e' o# A8 c5 b$ j; R. N/ Q
- #include <arduino.h>( t4 H/ p( q8 u6 _
- ESP8266WiFiMulti WiFiMulti;* X+ i4 \8 B1 P1 |% i* C
- ESP8266WebServer server(80);* u# l6 X$ G, P$ A# d' k; a" A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" m3 y9 \2 r6 j ^ - ADC_MODE(ADC_VCC);0 H8 V5 a$ j- e- X% x$ H; s+ \9 N
- void setup() {
$ U# O7 n( ]3 |) z2 `7 m" L" F- _ - Serial.begin(115200);# k% M: W I; i% `7 I0 G% w' ~
- Serial.print("\r\n\n");' [$ u' |; E7 ^+ r5 J
- pinMode(2,OUTPUT);& [9 a# @9 d; V- \$ G& K
- // WIFI2 F2 c& Y/ F) Z3 {! `
- WiFi.mode(WIFI_STA);
: r. q+ o! Z7 y5 `* f( ~0 ?+ g* x - WiFi.hostname("Sparkle");
( b2 ^% S' e a5 Z5 o# \ - WiFiMulti.addAP("wifi ssid", "wifi password");
/ P9 J& s+ @9 a/ ` - int tryNum = 15;
7 y5 D: J& u* x) U6 |3 b - Serial.print("Connect WiFi");
Z0 {& Q& _9 p9 |/ Q+ P3 N: A2 j9 k - while (WiFiMulti.run() != WL_CONNECTED) {) u5 u; [8 O# x6 a$ E% k
- digitalWrite(2,0);% q* g( X/ J0 ~0 w( o' z4 w
- delay(200);. M7 W( Z0 x% g, M: O" {1 {5 z
- digitalWrite(2,1);8 R* N" q0 ~, j/ V# @
- delay(300);
2 ]/ y2 V+ S- v$ n% G& n - Serial.print(".");; y. e& E) e5 ]% z7 W; g; I4 r0 |) v
- tryNum--;2 d* m( M, D% H1 s7 i$ c4 Y
- if (tryNum == 0) {
$ I$ s, c( e& p( ^/ B# P3 m, Y. d" Z- S - // 1min, D3 v: u8 A: o$ ~
- // ESP.deepSleep(60e6);. v1 o, W/ J% M2 z% @$ ?* T% S
- ESP.deepSleep(0);% C" D5 d& c: \9 R0 R Y
- }5 P7 r3 `/ X* b; j; x6 \/ t
- }! _9 F" t& ]3 f, k/ e! R
- Serial.print("\r\n");
7 T' E! P9 `* m2 k9 y, I - digitalWrite(2,1);+ d! m* i( j/ V9 G
- Serial.print("IP address : ");
; c; i3 b* S. }/ ]; z - Serial.println(WiFi.localIP());
4 k' x6 Q* w4 x y# c - server.on("/", HTTP_GET, [](){
& M& @" X. j! h$ f3 J/ r - server.sendHeader("Connection", "close");" ~8 N: R8 j. x _0 _) D" q
- server.send(200, "text/html", serverIndex);0 B$ {! u1 f3 C4 Z% x" a" `' Y
- });
* ~& O. J. S$ d- | - server.on("/update", HTTP_POST, [](){
8 x1 I% L h1 q8 f! ~ - server.sendHeader("Connection", "close");8 T* c2 U! j" ~- Z+ Y8 H( ]) l
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, w2 r- ~% d' P) Q - ESP.restart();6 ?" \( s5 s. E) M! K
- },[](){4 _: J# v. ^- m) u3 p
- HTTPUpload& upload = server.upload();/ ^2 ?: i0 d3 f9 e
- if(upload.status == UPLOAD_FILE_START){
# n" D+ P* T# K9 y [- n5 ?) n4 n0 `. G - Serial.setDebugOutput(true);& ~* e8 A& Q/ i
- Serial.printf("Update: %s\n", upload.filename.c_str());+ E& N3 {4 o0 k4 |3 Q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, n$ ~7 |6 ^% o7 W( ~; e, e" G" T
- if(!Update.begin(maxSketchSpace)){' ]$ {( o# `8 S) \1 i: o0 ?5 z) e/ s
- Update.printError(Serial);5 `: f& H" @! L' k/ Y
- }9 N/ `) p; S$ Z
- } else if(upload.status == UPLOAD_FILE_WRITE){9 a, F: U" X$ n2 H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 w d" p' k, J1 C4 l1 W' L1 d
- Update.printError(Serial);- \6 S& C- N8 K* Y( p6 a
- }
1 w% D9 P. h) N% A1 p+ g - } else if(upload.status == UPLOAD_FILE_END){$ j$ X- F+ a% V/ `) A& ^
- if(Update.end(true)){
8 K, z. `& o+ J% L, X' _8 s+ }& { - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ S7 Q, z# d6 N, W
- } else {# _1 R! Z, n! s' \1 V) T' m
- Update.printError(Serial);
1 y9 S9 I; n6 p# U2 T. G - }; ~! A) j# k. E/ }
- Serial.setDebugOutput(false);8 g! Q- q7 j/ t9 H- }( U
- }! ]" P* S; F0 y+ N U6 A" K
- yield();! Z/ x# b: Q0 ]1 l0 G
- });
W3 t/ M* f* o2 ^ - " G& X: ]" j+ S! H2 ?: r8 r
- digitalWrite(2,0);
6 A7 c4 O2 {5 n5 e6 k0 y8 o - mainAction();3 [# \5 p- B) u! c5 ~& n8 i
- if (digitalRead(0)){
$ D' T8 s9 \1 `0 j - ESP.deepSleep(0);$ A$ O1 Y1 N4 y7 z. Q
- } else {
6 F. W6 L) M7 O) A - server.begin();
+ G- y9 I, y9 p) w' S* W - }6 b# j" D: @- z1 R: b5 L V
- }6 ]2 [& [" {' {6 d, z# L
- void loop() {
5 i( G$ G; e; r" D - server.handleClient();
7 R2 d8 W9 z. D" w - delay(1);0 h& u' C% b$ v
- }
; e! x+ t0 t; [' e5 F - String doGet(String url){# u4 m7 e, h3 B/ M
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 d! Q& `: h k- r: l - HTTPClient http;
. `; r6 i7 S* T6 K - Serial.println("[HTTP] begin...");3 A+ h# X0 C: ^0 f
- if (url.startsWith("https")) {
( s/ H& m- U7 J5 m; I - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ z0 F" E6 P5 T' P. x" l2 h
- } else {* k9 A3 y ^% m. G
- http.begin(url);
" D( @9 D! m( S0 l7 N - }8 Q6 U% I$ h, P* `. L- o6 G5 p
- Serial.println("[HTTP] GET...");
, s) z g+ O, S" a/ \ \2 Y - int httpCode = http.GET();
" B/ z3 n( Q1 k* Z- f- ` - if (httpCode > 0) {
4 i9 K L' S) ? - Serial.printf("[HTTP] code: %d\n", httpCode);
7 s, L3 t7 g4 x: M' C - if (httpCode == HTTP_CODE_OK) {
9 N4 ]. R% f0 _' _ - String payload = http.getString();
: N( ~! t5 l |! d1 r+ L - Serial.println(payload);& t8 q: r; n, Q
- Serial.print("\r\n");
i9 _. X6 N6 x, P - return payload;/ I' M. Q1 x3 ]: X4 i+ Q
- }$ e$ M4 a5 T9 X. O
- } else {
* K# J3 Y4 Q0 i4 |& I - Serial.printf("[HTTP] GET... failed, error: %s\n",
; O, s9 B3 X1 ~3 V - http.errorToString(httpCode).c_str());
" a T& q/ t1 ]/ L& f( r, U - }
5 R! x) i: H- q4 Q, F% {4 U - http.end();" ]* v# L' j& C+ `
- return "";
6 ]. k5 l$ P/ w p, e - }% o2 D3 H1 o% ?5 _4 F9 x/ h& ~
- }5 a9 Z! ]4 b. c5 U( U
- void mainAction() {
" z4 r8 ^' W* j% o4 |0 b" `$ _( H - // 发送请求
& L7 }/ o- m0 P3 E; {' @2 r - doGet("http://google.cn");: M6 q, I% x) W5 W( b" h. E
- }
' z# X' t# ?5 Y1 `0 d1 P4 V8 e/ l) h
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