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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 H5 s" Z1 m. q3 H
- #include <ESP8266HTTPClient.h>
4 S5 S4 O! ^1 \& F - #include <ESP8266WiFi.h>
/ K2 Y7 e+ b1 Q9 @8 J - #include <ESP8266WiFiMulti.h>* N" j( N( T |! w
- #include <ESP8266WebServer.h>
9 ~! ]0 _! @- A/ ?/ U - #include <arduino.h>
" p7 d% `) @4 o4 i8 ?" [ - ESP8266WiFiMulti WiFiMulti;
6 Q* W1 F9 C; f# B- y4 W+ k - ESP8266WebServer server(80);! W3 l9 T4 O" I- S4 Z0 E; D$ \& A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ U: g! `$ Q) s& u, d - ADC_MODE(ADC_VCC);; t! r: F o$ w) p6 ^
- void setup() {+ {) @' {% O3 h' \, u- _8 T
- Serial.begin(115200);
8 P7 ]9 A) N& H! f: A3 V - Serial.print("\r\n\n");8 U* d$ @2 L- y9 \
- pinMode(2,OUTPUT);
8 ]+ {3 B& t! j - // WIFI5 ~9 J* b. n. i+ H; N' l
- WiFi.mode(WIFI_STA);
3 ~0 x+ c8 o/ B$ _' _- I5 L - WiFi.hostname("Sparkle");5 D* s8 \$ d, i& L l c8 z- ^
- WiFiMulti.addAP("wifi ssid", "wifi password");
0 Y# B _$ t8 I' j; o1 E6 L: ~ - int tryNum = 15;, F# x' j' y: A9 ~
- Serial.print("Connect WiFi");
! x* T( ]7 o. J, @ - while (WiFiMulti.run() != WL_CONNECTED) {3 }8 i4 F' f# F6 ]4 |2 b
- digitalWrite(2,0);
/ Z/ P' w# [' B0 Q4 C0 n/ g" s9 {* U - delay(200);* ~# v, b* ~) W
- digitalWrite(2,1);
! P* \* O2 a3 n- ]4 | - delay(300);
) c9 B" g6 B( o; K - Serial.print(".");5 o% [ {! g0 d7 c% P/ ~! r
- tryNum--;
2 i3 v2 u) i: X/ x" G3 [1 K - if (tryNum == 0) {
5 A# w2 g1 b- f) [ - // 1min
! V6 H: ?% G6 W% n+ i4 z8 ]. m& M - // ESP.deepSleep(60e6);
+ Q4 Z) G9 ^) P/ T' C, W0 W - ESP.deepSleep(0);
0 d" P+ v: y; z - }
+ V5 m& _% _8 K1 d% F - }+ t: k. z% @/ j$ I" g3 o
- Serial.print("\r\n");
# P9 {8 E- h" y* I7 e - digitalWrite(2,1);
; F7 y8 l% W6 \ _ - Serial.print("IP address : ");
" K7 x: h" N K) Y - Serial.println(WiFi.localIP());
7 z, [: U, U2 [2 G - server.on("/", HTTP_GET, [](){2 S# s" R/ R% @0 Z! \
- server.sendHeader("Connection", "close");
3 y' d1 f( F- h5 ]6 `0 ^% ?) y - server.send(200, "text/html", serverIndex);
5 s- l# I. q: w* Z' I - });4 _2 b4 ~: M/ f8 E( p* A. p: ^# w
- server.on("/update", HTTP_POST, [](){
5 |* C, |, O4 ^. V% R' m* g _ - server.sendHeader("Connection", "close");* s+ @$ @$ ^; Z2 ~+ N: J/ L
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% d" B \- {: p/ M& X8 _3 k - ESP.restart();7 O* X% c$ k2 G4 @7 K! H
- },[](){5 Z# J* Y. ^: G: T
- HTTPUpload& upload = server.upload();
( X' R7 c5 u x, r% e: a - if(upload.status == UPLOAD_FILE_START){
! V4 ~6 s: ?/ v6 q! Y. ^ - Serial.setDebugOutput(true);
' O) c5 p% @+ ]) P' ?1 I - Serial.printf("Update: %s\n", upload.filename.c_str());8 e! I+ Z3 a+ y& }2 `' L
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( d* X* w# L D- s
- if(!Update.begin(maxSketchSpace)){- x0 h+ Q1 P3 s% M% k* m" n
- Update.printError(Serial);3 g$ o- ] ^6 ^8 ~( E- a
- }
( s! B% o: g7 h% |! G - } else if(upload.status == UPLOAD_FILE_WRITE){$ p, O+ e/ W5 s9 y8 y# y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) R! U+ k1 [% b) Z( u - Update.printError(Serial);+ O* X( ?2 ~$ T7 o# Z
- }$ j+ ?; H" x$ g6 ], M% k6 l$ |
- } else if(upload.status == UPLOAD_FILE_END){5 ^7 n2 O% F5 ~" K4 `
- if(Update.end(true)){2 R/ y6 t( h, a8 ~
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" j% n3 |; ]1 ?/ _ - } else {+ d& b- [- X- c7 ~
- Update.printError(Serial);
* K$ t' P2 |% ~1 A5 t - }
% J5 v6 m9 Q y* w2 S! l - Serial.setDebugOutput(false);
" F* X3 K% L4 N, H% q. O/ v - }+ v& v" r3 G S+ G0 f' }
- yield();
, l1 p$ B( `. G4 t - });- J- J4 g7 u* G& l ` d: \' `7 {
- ' D8 c5 U# ?( f% O
- digitalWrite(2,0);
- N& }- J8 R8 Q6 F% h) S - mainAction();
2 P4 }( X5 t. e- S y - if (digitalRead(0)){/ h6 s0 t, `5 w i
- ESP.deepSleep(0);7 x. ~+ g8 K" R: |" ~
- } else {9 ~+ w$ z* Z- n
- server.begin();
7 k3 K& b0 ~. z6 t Q7 K# M - }
$ o. i* t. e+ Y+ Q* k - }
$ o+ r6 k, G0 T- E; ?* N - void loop() {
# ~3 r, q" Y' D& Y& o' H* a; x( ~ - server.handleClient();! c; L9 c. }3 W9 b, {8 o& i
- delay(1);
9 H3 \ N9 I! [: |: e3 E - }7 k$ a# E, k) T! Y9 L$ Q
- String doGet(String url){
4 J( e" v9 [" X5 H4 H6 }/ | - if ((WiFiMulti.run() == WL_CONNECTED)) {/ B R! r" v4 u3 i3 x# V% S
- HTTPClient http;0 ]; d( r* u7 H+ V& A
- Serial.println("[HTTP] begin...");
$ H" K9 ~# u: ]4 X' Z; r8 Q - if (url.startsWith("https")) {
- g, s2 S! v3 h - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" t1 v6 Q. `8 C$ h8 m( k - } else {( E: n9 F% A2 j) `
- http.begin(url);
1 Y; o. b) l! k( v - }2 H! C2 k9 Q$ d3 {7 b X
- Serial.println("[HTTP] GET...");
" P2 R& [3 N) g( E, l7 _$ v, A1 B - int httpCode = http.GET();
! W. ^3 }8 w$ |* Z4 e8 o- d - if (httpCode > 0) {
3 t8 n# f, _ T - Serial.printf("[HTTP] code: %d\n", httpCode);5 x5 Q) I E7 p2 Z# f& I# q( \% K* O
- if (httpCode == HTTP_CODE_OK) {: m9 v" }9 ~! z+ O- G7 k+ ]" m) W) G- V
- String payload = http.getString();
( S- P4 c J, }3 G% k2 S4 T. K - Serial.println(payload);5 w, l2 u6 c7 w9 r& k X
- Serial.print("\r\n");
5 Z% U: E' h; O1 R1 |7 P5 C1 w5 K3 \( Q - return payload;
4 H: G: V7 h8 \8 P0 k+ S* L8 M - }# P% c( z: s' f
- } else {
6 S7 X. w0 _8 Z Q, {" c - Serial.printf("[HTTP] GET... failed, error: %s\n",
, f. O6 O8 z/ R+ | - http.errorToString(httpCode).c_str());
, d$ W% A: ~/ H. _! k2 ^! e - }
! z- U, B% D3 \; j - http.end();
, D# G' h6 B& [# w+ {: C& U - return "";* V C; ]; E! u6 z& D7 s
- }/ p; } F4 g& ~# @5 b
- }2 W) K+ U1 u" B8 O: O6 i: O2 Q
- void mainAction() {
/ ~ ~" y% x; D1 x7 X - // 发送请求0 `( u& d6 z7 u( C4 L
- doGet("http://google.cn"); S. }6 [ G7 L. o- |
- }
! g1 |' g+ J& J) Y6 j! A% @
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