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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)& c# J# t! P$ h2 N
- #include <ESP8266HTTPClient.h>; C2 y0 M; {& H* K
- #include <ESP8266WiFi.h>& U8 K2 A$ x+ k" I* D S! J7 s6 f8 v
- #include <ESP8266WiFiMulti.h>% B( P, y+ Z$ }/ |
- #include <ESP8266WebServer.h>, [4 p9 V8 n4 s0 m% R6 i
- #include <arduino.h>
; X* |' ~$ h& Z/ ]- W" t; y - ESP8266WiFiMulti WiFiMulti;/ w: m# U& O1 T7 F; O Y" C
- ESP8266WebServer server(80);7 j$ b+ y8 [& E0 h
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, Y% q. e3 P N! y W. M
- ADC_MODE(ADC_VCC);& y+ D- ?' K- \4 V# L' i# }! T7 C# }
- void setup() {
0 A) v7 f) v+ \6 R% t - Serial.begin(115200);3 F1 w% F! q& j8 A
- Serial.print("\r\n\n");3 s" @; O: d# |: P
- pinMode(2,OUTPUT);
+ T7 o) J% ?* B B3 {- P% U - // WIFI. [ f$ q1 q! A5 ?' ^
- WiFi.mode(WIFI_STA);$ p- J$ ~) ]8 v0 c2 u
- WiFi.hostname("Sparkle");
* j- Z( J( S8 h - WiFiMulti.addAP("wifi ssid", "wifi password");% u2 e0 o7 l. u+ p& r' P
- int tryNum = 15;! h8 X* `( e8 x# w8 \) j# z) R
- Serial.print("Connect WiFi");
, i0 r% f& L7 o& Y! N4 z. Z' F - while (WiFiMulti.run() != WL_CONNECTED) {
: r9 i$ f7 y+ X - digitalWrite(2,0);
& L0 \2 c& E$ P/ A V - delay(200);9 w! n; n+ Q2 T/ Y
- digitalWrite(2,1);
, J. g7 A; f2 e* F - delay(300);7 F6 m6 j7 u! c2 e: |: ^( z
- Serial.print(".");
" X9 b1 t* T# M, s - tryNum--;% u) T( T/ b9 Q- r# ]+ \1 p
- if (tryNum == 0) {
& E% u G" W! Y1 b: n s - // 1min3 Z. h5 \' q T4 C0 X7 F. H8 J& K
- // ESP.deepSleep(60e6);
% A2 E. d% {& D, i( F - ESP.deepSleep(0);
; z1 G# m" K& G- k" _: O# p- K - }
. {* k D0 T' @ - }
' v5 D( Z% S4 N7 k9 v* p, P+ X0 C - Serial.print("\r\n");
/ p/ s G" F0 [ - digitalWrite(2,1);0 C3 n7 @. M, B1 u) r- F* L
- Serial.print("IP address : ");
1 N9 w) z9 v- ]2 I* z" J - Serial.println(WiFi.localIP());
" B# l: v2 S g* \ - server.on("/", HTTP_GET, [](){
L* }5 {" G6 K a2 ]2 l O - server.sendHeader("Connection", "close");
2 K& Z3 a. J" e* h - server.send(200, "text/html", serverIndex);0 _" J; P+ P# v3 H# r I5 {
- });
4 \* v, S! x* v' T - server.on("/update", HTTP_POST, [](){0 z; ]( _9 q7 R) J: K; a& ] \
- server.sendHeader("Connection", "close");
# i8 a* M0 p; z5 j8 A - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! T# ?" _, I* ` g
- ESP.restart();
+ U" D& `1 B* G6 c) f/ V% f - },[](){- X1 [ Z& b- F1 S
- HTTPUpload& upload = server.upload();
$ ?/ H h. S2 \# U5 m c4 j' I2 O0 X - if(upload.status == UPLOAD_FILE_START){: X3 F! T5 V( Z& H1 B
- Serial.setDebugOutput(true);8 \" L- S e! O
- Serial.printf("Update: %s\n", upload.filename.c_str());
/ O+ l. b e- ^% R - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;2 c. u1 ]) |4 f, ~/ M
- if(!Update.begin(maxSketchSpace)){
- B6 t% H9 P8 |+ H - Update.printError(Serial); Q2 Y; s" T. s3 w
- }5 f8 `; _: X% e# K
- } else if(upload.status == UPLOAD_FILE_WRITE){" q* c N; v3 U; R; n s+ l
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# ?2 W% V$ }4 H$ | - Update.printError(Serial);
' l' ^$ K$ ^' i8 R6 w# o L - }4 ]8 c0 s; i/ H& e7 `
- } else if(upload.status == UPLOAD_FILE_END){4 v5 N d9 E% l2 X6 J2 o
- if(Update.end(true)){* ^" [$ G* e& {3 r7 E
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; V3 M7 a: O+ O/ t - } else {
% r! d. Y2 f! K9 a- c3 x - Update.printError(Serial);
# \& @- X" q+ F. H' {0 P! ~ - }$ o5 E3 P( |6 h5 O5 H9 j1 e" k
- Serial.setDebugOutput(false);
I* o0 a4 \+ D; Y( x - }
% d; x! l& w( m1 a# W! \: k; S1 J - yield();! N7 a2 i; [) R* R' }# b# }. v
- });
! D1 q' t/ i/ J3 W -
9 `6 q# S( u9 X! M3 ] - digitalWrite(2,0);) Q d: W$ m9 ]
- mainAction();
. R$ o6 U9 p+ q2 H1 q) H( S - if (digitalRead(0)){ F) ~; Z! ?7 I( P& G% v
- ESP.deepSleep(0);
- k2 K1 j. S- {4 u - } else {
+ s% H, f }- Q |0 F, q4 U' h - server.begin();
) h w: R8 B6 @ - }
1 f# }0 W* d+ _# F) c+ s9 P - }
7 x7 S2 O, f; s$ |5 c - void loop() {4 L% _ ^, A# R T4 r. s
- server.handleClient();8 ~5 H9 e' e3 y' V1 }, n
- delay(1); d- X5 D7 K% y0 x5 V4 G
- }; H! f: I% J8 U/ R* x
- String doGet(String url){ `! y# o! }% T% M- p% e* G
- if ((WiFiMulti.run() == WL_CONNECTED)) {5 I' M6 K$ x- W3 Y. P4 \( h4 T
- HTTPClient http;
. H, E% b" b2 |/ n% R! p/ f) l - Serial.println("[HTTP] begin...");5 h6 x1 c) Z7 U, Q' B7 |
- if (url.startsWith("https")) {
& H: _/ d/ u0 P1 k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
8 i) T3 w f5 w4 R - } else {
8 E' Y0 {+ o4 |. X3 B8 T; P - http.begin(url);
) q6 ^% o8 A' d' \) Z- s, a - }+ `" @6 r m1 y9 \( Y7 K
- Serial.println("[HTTP] GET...");
8 T! b: ]6 ~7 G z; n - int httpCode = http.GET();! K; A4 O, ]% R0 I1 \" ^/ ]# B3 z
- if (httpCode > 0) {( f8 ~1 R+ X4 b! m/ r
- Serial.printf("[HTTP] code: %d\n", httpCode);
3 V. t3 G2 r/ r - if (httpCode == HTTP_CODE_OK) {
' z4 E3 X( c5 W6 k3 @6 f. T - String payload = http.getString();
' \9 B& G: k5 Z3 v4 B+ r% F - Serial.println(payload);
+ |" c6 B$ P% H) m4 P - Serial.print("\r\n");
+ ]* ^) P; |. P- l+ D6 m) X: ` - return payload;
9 r# {$ }( h7 h+ C4 p - }6 ]9 o- ]7 a; x& F: j: e. {
- } else {3 |1 A/ X: [$ D
- Serial.printf("[HTTP] GET... failed, error: %s\n",
( V$ A+ G: L0 s - http.errorToString(httpCode).c_str());
; c1 _. s, ?$ r2 E+ r: ~3 Y - }
. i* v: i' t6 i3 B8 L Q - http.end();
( T7 U+ k: {7 w. F - return "";. f) F, ?0 ^3 t* q
- }
x! k; i, S- k - }
. A8 V! H2 V' R# [ - void mainAction() {+ U" O! s/ ?, T9 @0 W- Z3 C, l8 S
- // 发送请求
" h1 t( [) I- t - doGet("http://google.cn");
5 a' S# z3 ?, ?3 u) f: ?3 I - }; W1 J: h. _4 C) t/ K
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