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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)) b0 a1 o x$ W1 R7 B; \6 B3 o# ~
- #include <ESP8266HTTPClient.h>
% _% w/ H3 P' h9 W - #include <ESP8266WiFi.h>8 y0 K5 x( c3 q
- #include <ESP8266WiFiMulti.h>
5 {! Z( p. c# T- y - #include <ESP8266WebServer.h>
/ C' p1 f/ @# b5 G - #include <arduino.h># _/ P* G/ r. O- d' `
- ESP8266WiFiMulti WiFiMulti;: ^. q/ O1 O1 Z- G- ^
- ESP8266WebServer server(80);2 i" i6 Z9 l. M* F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, M7 B+ Y$ }+ L% R% U! p - ADC_MODE(ADC_VCC);
( K) O- B' M# s! A { - void setup() {2 y( i; L6 ]6 P$ g
- Serial.begin(115200);1 ~5 v/ R+ X# b4 s* |) e
- Serial.print("\r\n\n");
* y' v" i0 `) A5 |* h4 y- ?0 L - pinMode(2,OUTPUT);
( J6 m! I W, k' n. I - // WIFI
9 w) Z( f$ x9 O) J! J7 X2 Q - WiFi.mode(WIFI_STA);) |% n1 Q) s1 U% |7 z0 y) E9 \' q* P
- WiFi.hostname("Sparkle");: ?. S9 ]& i8 h1 r) ^5 e" Q- H6 Z# Q
- WiFiMulti.addAP("wifi ssid", "wifi password");
7 W& m2 R; \* z* W7 H. { - int tryNum = 15;" |9 p1 V' `. _. t0 {; ]. ]
- Serial.print("Connect WiFi");2 c/ |+ H" _2 |. `" C6 X
- while (WiFiMulti.run() != WL_CONNECTED) {
$ D* Q" b \3 r - digitalWrite(2,0);& F, h5 C! |: F6 L/ d' U
- delay(200);: L5 J# e7 y9 L' ]/ |2 j' R
- digitalWrite(2,1);
' W6 h, b% L9 P9 }+ t - delay(300);
7 O/ U# r( I' D4 X2 O - Serial.print(".");5 I% }2 W+ V: a" x4 F9 B `6 _
- tryNum--;
1 z1 v. W3 W7 h+ ~ - if (tryNum == 0) {2 D8 n. I) ~8 ?* b# ?' |$ P( i/ s
- // 1min, i( H6 N4 y+ Z0 O) U9 k d
- // ESP.deepSleep(60e6);0 U) w8 J6 `/ ^
- ESP.deepSleep(0);0 ]. b" j3 I2 A' _, U/ Y% g
- }; x/ u8 T& g% F3 K
- }
8 o' i* x5 }) f - Serial.print("\r\n");
- i y9 T5 m- r3 D! m" Y - digitalWrite(2,1);# D1 _; S, T# |* v
- Serial.print("IP address : ");
) n# ^9 p6 Z, t8 v" F% n% j) f - Serial.println(WiFi.localIP());0 ` j8 }1 }( Z0 X1 j4 T
- server.on("/", HTTP_GET, [](){
_; Q! z" m* [: S - server.sendHeader("Connection", "close");
+ b9 }8 B [/ l$ | F- G {. G - server.send(200, "text/html", serverIndex);
! I' [4 b8 G- ~- ?5 [, u. l# o7 T - });: \# P, z+ B6 ^; _
- server.on("/update", HTTP_POST, [](){9 r: V4 C% ?( i; h! n: M, N* l
- server.sendHeader("Connection", "close");; ?4 g! C1 x+ A x/ T# v. F; S
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% ?7 h. W$ d! {$ ?6 T - ESP.restart();: R n2 c' a, Y+ m, a2 G [
- },[](){
* E; k* \7 Q ^% ~/ C3 U- V) Q - HTTPUpload& upload = server.upload();
+ V: A/ q8 B( N- E5 e7 u1 J, c - if(upload.status == UPLOAD_FILE_START){6 w9 O3 `) _4 Z
- Serial.setDebugOutput(true); [+ F' |8 R) y+ S
- Serial.printf("Update: %s\n", upload.filename.c_str());
$ S, Y/ Z8 c7 W" ?7 T - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- m, _; m7 `. Y, q( v - if(!Update.begin(maxSketchSpace)){
2 O/ H3 W7 q0 Z( U. {. ]" K - Update.printError(Serial);$ @& ?* ^9 W$ s2 j8 _
- }
- [8 M% @4 a; t- |" h0 X - } else if(upload.status == UPLOAD_FILE_WRITE){ J( _- m: m: X* Q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 ~# z7 ^ P! P; G
- Update.printError(Serial);
F+ F. J+ H0 J$ w m: b f" ^/ [ - }
' N+ p7 H/ W8 O; t- R* Z - } else if(upload.status == UPLOAD_FILE_END){
( {. D. {! t/ v) q3 n& {7 F - if(Update.end(true)){5 C) W, _# R; L+ @4 ]# |1 G& R1 B Q7 o
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# g4 r7 ?. V# G# {, B
- } else {7 {; k$ g$ Y) \" c. V- G
- Update.printError(Serial);
5 j! e0 o6 U& }: H6 _( ] - }
$ Q$ W) p2 ]" r5 z) l8 _ - Serial.setDebugOutput(false);
9 `. A) V+ Z0 D, b - }- n9 w0 [$ X, H T
- yield();" H! q$ n) T; g
- });
; L9 i& b3 s- X- j1 A9 E- [ -
* {% Z; k! z# t$ Q1 x0 G! m- x - digitalWrite(2,0);
+ ^+ e& m) B2 K. |& l) W4 S* U: Y - mainAction();3 U8 L7 U- y% o9 \/ `6 d# I
- if (digitalRead(0)){
z5 r) L, G: g - ESP.deepSleep(0);0 @) X. c6 I8 ^; L) w' w
- } else {5 x. q, s" `# b: e
- server.begin();
) d* \( b# x* B! V' s - }, ~1 ]( B; R2 Y3 H0 @
- }
. V$ m5 ]/ u, F: ?& h - void loop() {
( V7 m) x- u8 [& F: j - server.handleClient();- p& z9 P* C; u. j) Q
- delay(1);
& B- l W D# C7 e, ] - } c; {) L* S8 [# ^
- String doGet(String url){( T8 U; @( k: \, U
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& O3 ~' D; }! E, [ - HTTPClient http;% a2 k3 O0 B( c0 ]# j( T: A3 y. A. K
- Serial.println("[HTTP] begin...");
! Y% I: p& }3 k. }0 [1 ? - if (url.startsWith("https")) {
, w# ~* C# z' e! F- ^8 H% a6 v - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& Z2 K! `6 |% O2 V, O - } else {1 z4 L* ?$ H% S8 ^1 ~ }4 d
- http.begin(url);2 P( u: h8 O1 V5 _" x9 m% |6 v7 ?
- }
- }+ q; T) Z4 V2 R - Serial.println("[HTTP] GET...");
5 h+ _3 u, G H7 @ - int httpCode = http.GET();8 j* a3 D. C7 t- f. j8 ]
- if (httpCode > 0) {. _) J) P; ^+ v. x
- Serial.printf("[HTTP] code: %d\n", httpCode);: @+ ?7 N4 Q+ ~% g2 v8 U
- if (httpCode == HTTP_CODE_OK) {# k. J C! s& y' _+ k
- String payload = http.getString();
4 r5 p( j+ s- K% c# ^+ P1 V - Serial.println(payload);
- B! v1 N7 m' D X - Serial.print("\r\n");. H# y: S, d; ?, |% @
- return payload;* ]& n, S g( W+ }$ s; O% j4 |
- }2 a/ O3 ~1 s# J7 S* L: G0 U
- } else {* M& V8 _& c5 z8 p* n! T3 x$ c
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' Y. x2 Y2 ^1 w/ v0 Q3 s - http.errorToString(httpCode).c_str());
/ F+ g2 V# Z/ p' n |7 j6 O' B - }
; _3 \& M Z5 {6 W - http.end();
7 C* E% Q6 {7 ]6 u - return "";
" }4 y4 R) e+ @3 s. \# ?. Y - }
5 t/ _! b; k3 F% z - }
8 ?) D; o3 @) n/ N - void mainAction() { k) D7 L- v; W# z/ r X9 L
- // 发送请求! }5 ~( w5 U; L3 F
- doGet("http://google.cn");- M! b6 |' J, z& |! v5 m3 Y9 ?2 y
- }
) q- c* S/ t/ B
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