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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)
! U+ l# z) k2 v" O. l* H- #include <ESP8266HTTPClient.h>7 u3 i1 s2 C9 L9 c
- #include <ESP8266WiFi.h>
1 M' k- x8 r1 f' q' U# x - #include <ESP8266WiFiMulti.h>
7 |' \) e# _9 F- m - #include <ESP8266WebServer.h>4 Y0 _- R, K k, T4 T, y
- #include <arduino.h>. ?0 J7 e* Q0 J, }, y6 y
- ESP8266WiFiMulti WiFiMulti;7 C4 S) {2 @# ?* g% q
- ESP8266WebServer server(80);
4 s- m. e2 Y9 u+ x - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 k# @& _9 Z3 d: H4 _) }
- ADC_MODE(ADC_VCC);
) P) c# e, }+ n9 D5 v5 h - void setup() {! P% _5 t4 ?8 M3 t( `
- Serial.begin(115200);
. u; N" R7 S9 X% q5 Q0 U% E$ Q - Serial.print("\r\n\n");. r/ {$ G, o0 k; T2 f( v0 B5 V% ^5 T1 Y: U
- pinMode(2,OUTPUT);" [+ y- _% ]+ u% K% }# h
- // WIFI, L6 ^' E8 }/ o
- WiFi.mode(WIFI_STA);2 _- e8 |2 j" g* w8 s Z; s: J" S
- WiFi.hostname("Sparkle");
4 v. ]2 L- j* d7 ^1 G& A - WiFiMulti.addAP("wifi ssid", "wifi password");6 ]/ |% l* G+ O4 x* h/ E! Q8 x
- int tryNum = 15;
# z5 I. S0 L. k: e$ C0 h - Serial.print("Connect WiFi");
: i0 y5 h, A9 @ s6 \! E9 L0 q' o - while (WiFiMulti.run() != WL_CONNECTED) {& V- z0 A1 j* Y$ \3 L9 K% N) J! x
- digitalWrite(2,0);
5 q% K2 `8 U7 X4 e- ]: |" d - delay(200);
2 A6 ~0 V1 m8 @9 X9 E - digitalWrite(2,1);
+ U1 I/ X( R' |( Y1 |8 U - delay(300);
1 w: X9 J5 Q9 [: Z - Serial.print(".");% ^& M; }: |; b
- tryNum--;% j3 ~# S% r5 x) G" a2 q
- if (tryNum == 0) {
- F& u j) l! K6 D9 I - // 1min' ~: e# S1 z7 Z: U$ h8 L
- // ESP.deepSleep(60e6);3 d) s, F4 v/ v
- ESP.deepSleep(0);
* X/ S* J( u9 F - }
" P7 i/ }6 `% {6 V3 v - }
& J+ ?8 F; B2 l7 G5 g9 ` - Serial.print("\r\n");* D5 U( L% }% f; t
- digitalWrite(2,1);
6 j$ R% v3 f1 \; Z - Serial.print("IP address : ");3 \' f5 [( Y, Q1 j+ d8 w9 ]. |" b) a
- Serial.println(WiFi.localIP());- q5 Y+ i2 j) }- Y
- server.on("/", HTTP_GET, [](){$ g) u. q$ q( D8 T$ w }# b
- server.sendHeader("Connection", "close");5 ^- _. x) d8 n0 c7 N' O% _
- server.send(200, "text/html", serverIndex);
( U6 |( x" X ~1 l( j1 u - });
" J! h, Y( w; O! m4 I9 p$ y3 W - server.on("/update", HTTP_POST, [](){- A, D+ F& s! @$ ~5 |9 [, W
- server.sendHeader("Connection", "close");
: r- [* U+ M. y; }: s/ o! X - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 l) A/ t! @: B+ ^" x& H - ESP.restart();/ |5 w" }! r* V: F$ ~
- },[](){
0 A8 R Z" b7 b- W' H4 H - HTTPUpload& upload = server.upload(); l3 @, K9 t z' b u, e4 ^# \
- if(upload.status == UPLOAD_FILE_START){8 N9 @4 Y) K; O
- Serial.setDebugOutput(true);
2 G2 n1 _6 }. e3 o - Serial.printf("Update: %s\n", upload.filename.c_str());9 Z+ ~7 V' h* E- W, `
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ Z# F' s$ w# J1 n+ N
- if(!Update.begin(maxSketchSpace)){
$ f5 |' h' J. o2 K; D) H- E8 m - Update.printError(Serial);1 j# p [) Q2 y3 y8 `9 y! C1 S1 o
- }9 U8 E7 ^: p- [7 c9 e6 P- W% u
- } else if(upload.status == UPLOAD_FILE_WRITE){
; B2 G$ Y: H1 y% L" @2 p - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 `" z% M& R7 n, D. a4 F - Update.printError(Serial);) x1 @) Z" O$ K
- }" |5 @) h! J0 i; I; G5 E) n7 w
- } else if(upload.status == UPLOAD_FILE_END){
2 C2 I3 ?- I' L" [" m2 z - if(Update.end(true)){
9 n M: W5 M! {7 M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- i0 [; c( K5 @ q/ D
- } else {. `5 [9 Y9 B/ W' B+ T7 B2 C8 h8 z
- Update.printError(Serial);. E" u# j8 w& z1 g
- }
8 D' `1 o/ p4 q2 c l7 S - Serial.setDebugOutput(false);
" ?+ |" f5 g3 [! Z" r! t - }% ?3 j) \& y# w8 @6 `- w- p
- yield();
/ t3 ]. g7 p! _/ C6 ]* I& X- Z - });
" n! G7 @! O2 K, a+ g# o -
4 W4 z t0 w5 I3 S - digitalWrite(2,0);
$ R6 M, z3 D- V7 `1 _1 `7 B - mainAction();2 `5 O8 t. U$ x! @3 P4 b4 A% ^
- if (digitalRead(0)){
& P+ K; @: B! ?6 `8 @+ B: `% j - ESP.deepSleep(0);! ^7 Y, Z6 y' h% f& t) m2 J* c4 [. \
- } else {8 c6 W' ~/ u6 i+ p d
- server.begin();2 F* H8 b- c7 f6 ]5 ~! q* p
- }
! t+ C4 M8 v z. u, G( H. I - }4 S" J% P. _8 F$ j+ r0 m0 U- b
- void loop() {
/ G* e; M* K" _0 u - server.handleClient();, h& {0 Q; h9 F1 A$ p
- delay(1);9 }) k6 f3 I l0 C0 p* A8 G
- }
% U# Y6 W7 t, s - String doGet(String url){1 G9 n. F2 Z2 y9 G4 w9 d6 [
- if ((WiFiMulti.run() == WL_CONNECTED)) {+ N$ J) f$ J/ W$ Q" s) ^
- HTTPClient http;; V# ?+ [7 ]: f1 F4 Q/ G8 W
- Serial.println("[HTTP] begin...");
4 X' y/ X, Y# Y2 w. L% ?7 t# a: b - if (url.startsWith("https")) {( M2 Y+ [& n- I7 U7 R
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, b0 U/ V W! r# t - } else {& b) _5 ^$ H: }/ T6 a8 [8 [7 D- B
- http.begin(url);4 V( ?+ R( M& R! n
- }2 N1 r x( n, y+ a* t: e9 ]' @8 O
- Serial.println("[HTTP] GET...");% R# B0 Z r5 ?4 _
- int httpCode = http.GET();
, }+ m/ c, |1 H+ l2 l - if (httpCode > 0) {* p, r- R" r% {4 R0 B, F6 C o6 m
- Serial.printf("[HTTP] code: %d\n", httpCode);
: x: J2 c5 x+ f5 c1 F - if (httpCode == HTTP_CODE_OK) {
( g1 _( x. v2 l8 j* A Z* w5 s4 b - String payload = http.getString();
4 j" q! l; w! B" G - Serial.println(payload);0 t9 H' p( V1 l6 x, z8 D
- Serial.print("\r\n");2 x5 {, r2 B$ j* t& l [$ {
- return payload;
# |, ~# L9 N! w. t( e% C - }4 p# D0 K; M5 f, T: x& ?
- } else {% h/ q" M- b+ v4 b- i! |2 b( S
- Serial.printf("[HTTP] GET... failed, error: %s\n",
2 Z( m" N# N5 O" X$ [9 Q - http.errorToString(httpCode).c_str());
" w9 W* W4 a% @5 Z - }
( g* B9 _4 q1 {1 h0 d- d6 | - http.end();: Y8 h& [0 u" Y9 m% o
- return "";
: p! O3 [6 x3 T# I - }
* N# ^5 Q: U; F K - }
. H" X8 ?. Y' F9 K/ G& V - void mainAction() {1 _+ g6 @; v! H8 E) W* G& w
- // 发送请求) w4 q, |' l* {& _' o3 j' W% F& b1 Y
- doGet("http://google.cn");
+ G! q1 b8 n! t$ B/ C$ x - }6 S# C, T( T+ H; t, {* n f" ~6 _
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