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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)* {0 f3 L; Y" M+ f
- #include <ESP8266HTTPClient.h>
9 C' O, O% \6 ?+ ~; a4 j! q# E - #include <ESP8266WiFi.h>
: U- R( u$ k- V- m - #include <ESP8266WiFiMulti.h>6 j# z( i- @2 b( S4 w" c. N$ Q
- #include <ESP8266WebServer.h>
4 a3 i- f. f/ E5 i) r6 ^8 H8 e - #include <arduino.h>
$ T2 M3 u( ] G( @, P% z8 A3 S. T - ESP8266WiFiMulti WiFiMulti;
) D: }& u6 ?* I - ESP8266WebServer server(80);
4 g$ v7 F7 w# _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 C$ T9 Q- Z9 g" ~7 {
- ADC_MODE(ADC_VCC);
5 y, u/ m' H! u) u: i - void setup() {
- a9 Y& w, M3 Q4 z: @ - Serial.begin(115200);
/ `' k$ z* K- _6 j1 B - Serial.print("\r\n\n");
, _5 r+ k$ A/ H# A' Y0 x5 A - pinMode(2,OUTPUT);8 l. x. G. N& n* [8 _& D) Z1 r) N0 `
- // WIFI
) s- O- f4 j' P8 _. i/ G3 z - WiFi.mode(WIFI_STA);0 W4 Z- Q% B% ~5 o% W
- WiFi.hostname("Sparkle");- b/ H. @9 ] G3 g B9 z1 F
- WiFiMulti.addAP("wifi ssid", "wifi password");' N# c3 N. d5 l# z: y& f
- int tryNum = 15;6 F7 _* [( ?% O7 Q
- Serial.print("Connect WiFi");
& o6 `7 m% e# B: `1 A - while (WiFiMulti.run() != WL_CONNECTED) {2 e7 Q5 w* g' O. w: F7 z6 H
- digitalWrite(2,0);
7 `% J; w# l& ]) k+ @. U - delay(200);: Z2 b: J5 h0 `
- digitalWrite(2,1);' ?2 _, T! l1 P8 c1 f( T; s" T* N5 D
- delay(300);. V! U. s, o3 d( R9 g; x
- Serial.print(".");- J6 J1 x) _; Z V
- tryNum--;
M+ m* A1 ]0 H. Z* S* e7 I, ~ - if (tryNum == 0) {6 [4 C, N j5 E4 P0 \
- // 1min
( c9 m6 L6 K: S1 A; q- n - // ESP.deepSleep(60e6);$ ~- M: t3 E! o. H4 s% a
- ESP.deepSleep(0);
9 }6 Q/ I6 V; M9 [- N! O. O: P; C( A - }/ z) ]; x% r3 Q4 N
- }4 W7 G4 a' W- ~* S
- Serial.print("\r\n");9 U. W9 L6 N D9 b) `
- digitalWrite(2,1);4 S$ }+ K2 V( O6 y/ J; b
- Serial.print("IP address : ");" c( q5 n$ E- P9 L- ~6 a( i4 v
- Serial.println(WiFi.localIP());; N) I! t; P5 O+ A( p6 a; }
- server.on("/", HTTP_GET, [](){
6 o* b+ V6 d# t8 p - server.sendHeader("Connection", "close"); R" Y% N9 Q+ L
- server.send(200, "text/html", serverIndex);7 n2 h) }9 J, X2 A9 _! x$ v
- });( U+ U6 x8 {1 k1 z
- server.on("/update", HTTP_POST, [](){$ w, S o' z* K3 {. |* y
- server.sendHeader("Connection", "close");; u- C3 [9 E8 c/ `( J3 W! R
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 {: F9 e8 j! J5 e$ Y" K. a
- ESP.restart();
/ x$ e) e* z9 G5 C/ p - },[](){
$ D! x) T$ i B Q - HTTPUpload& upload = server.upload();
* A. j V/ Z$ N, L& E& `. B0 Q - if(upload.status == UPLOAD_FILE_START){5 l/ E) ~* B7 w1 s' t
- Serial.setDebugOutput(true);
4 `) D6 W6 }3 K, l+ X) L* d - Serial.printf("Update: %s\n", upload.filename.c_str());' J& F$ N; o) o7 M/ I
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 ]" C+ S0 U) ]. R v
- if(!Update.begin(maxSketchSpace)){# w6 P; j8 Q4 H, c: `* j+ q
- Update.printError(Serial);
- v c) O- D9 m) @* t: M! ~ - }6 M4 R7 L. ~; D4 _3 u; o/ U
- } else if(upload.status == UPLOAD_FILE_WRITE){
) b- [2 `4 a( n: ]6 y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. F3 I: K) z6 ~6 [/ Q+ d7 w7 F& U
- Update.printError(Serial);$ Y$ J/ [* o9 A3 H" H' E
- }5 d2 q2 r& t. g% V
- } else if(upload.status == UPLOAD_FILE_END){1 X V+ B2 B0 w" g% l/ j1 W
- if(Update.end(true)){
, b0 S4 ?& |3 V - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: q& S4 |, K9 \2 @" V - } else {0 y# Z2 t& y- r0 L* ~/ S
- Update.printError(Serial);
" q' ]( i& a2 n) H! _) ^ - }; F0 ]* g9 s7 z0 \. { U% U
- Serial.setDebugOutput(false);# h, @" H5 N; h4 l
- }
) n4 K4 j& |6 D- K" R7 z. H# ]7 N& ` - yield();
1 J5 P% K) h8 a# X5 v" T$ g* L; e a - });
. k+ x% {* c% m9 C7 O6 s! {7 ~$ t -
) f+ s+ J) ~3 a/ J - digitalWrite(2,0);
5 j e0 k7 w, R, ~ - mainAction();
6 m1 W1 [! Q1 K# d9 f - if (digitalRead(0)){
0 q6 m2 W% b, y; X: i - ESP.deepSleep(0);) D8 G, @2 w0 M
- } else {
/ w1 ?! O7 n+ { - server.begin();
+ `$ m9 w% `2 K: K! D* q+ I - }
% B& F/ _3 X( c% Z! Z( Y) Q* _( c - }
; h) _: t# n/ U! M# I) ~ - void loop() {
; `- U; O$ k5 S/ o/ ]! A4 \ - server.handleClient();
1 t+ l9 t3 b7 O - delay(1);
( t2 e2 u1 Z' N9 i' O! @ u. o) \ - }! k. Q% @3 _0 j# y! _& F5 O+ o D
- String doGet(String url){0 B% N/ |# p8 ^0 ~
- if ((WiFiMulti.run() == WL_CONNECTED)) {
i' T. C8 \! G8 v - HTTPClient http;
& k( V2 @, G) e/ |; s8 D$ h - Serial.println("[HTTP] begin...");
1 f6 ^" L9 f/ c4 G0 Y- o - if (url.startsWith("https")) {, F' a- w! i7 V/ R* }$ A8 B* w
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 Z! t7 C1 g- A0 g0 j, Q# @ - } else {! j+ E. L+ B7 r, O% d/ g6 J
- http.begin(url);
- C# H% D% p0 M% v7 d - }2 X, z, y' G: v# p
- Serial.println("[HTTP] GET...");5 r/ o7 L7 r k7 Q6 a7 z1 U
- int httpCode = http.GET();! v* ^' _. F5 n) p' f
- if (httpCode > 0) {
% }: q, Q: r/ f1 T5 |4 v - Serial.printf("[HTTP] code: %d\n", httpCode);
" ]& i# y. \: v( O6 {# d - if (httpCode == HTTP_CODE_OK) {
7 ]+ g7 {% Q9 K5 e1 h/ D8 ` - String payload = http.getString();
$ _' Z0 N) `; z( b - Serial.println(payload);
$ k, z/ m: p. e; S4 u* s - Serial.print("\r\n");2 [) U, l' e/ G9 [
- return payload;3 m5 q& \1 n7 F$ c5 l
- }: f2 L# N9 V& d, j2 ?* A
- } else {: m- `! f1 m& c4 R
- Serial.printf("[HTTP] GET... failed, error: %s\n",
% o% Y' F, P4 R* ?0 a: e - http.errorToString(httpCode).c_str());$ z: Z( |5 R3 `. ^+ ]
- }9 _7 q5 j. Z. b( w& A* G
- http.end();
! g0 w( K. x' y6 N - return "";
$ f! g" w5 V7 V" H1 b - }% H# u' Y) W( r$ d7 w
- }% k5 U# x0 b r1 Y V( e) K( [
- void mainAction() {
, r0 }$ g, d Q) y/ g - // 发送请求
' l& \- C: @$ S: G3 A: b' x' s. F& ?! b - doGet("http://google.cn");
8 j7 ~; |# Y- f" T' E3 F$ }6 Z5 x2 V - }
3 _3 K! w( h& S- I* F& L3 e& }9 v
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