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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)
3 C# g1 }8 R. h) @- #include <ESP8266HTTPClient.h>
1 {1 u- d Q i9 r! `: c, [ - #include <ESP8266WiFi.h>
8 d% s" x+ I k5 c - #include <ESP8266WiFiMulti.h>
( m7 L6 a/ j0 W; C - #include <ESP8266WebServer.h>
" M( }! ^0 z1 n: j- | - #include <arduino.h>
9 I" g, ^% s* D. Q - ESP8266WiFiMulti WiFiMulti;
' t# |0 d, l+ E - ESP8266WebServer server(80);, e3 S# x6 u* P# l
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";& _9 [& Z' ?! c8 r/ e
- ADC_MODE(ADC_VCC);
/ Y$ W' G7 k* }. }8 ?/ X! Z X - void setup() {2 A/ g5 Z/ [* h' {
- Serial.begin(115200);4 q K( U: _! Y+ A
- Serial.print("\r\n\n");
2 s5 i1 A& g, o" a5 R ?. E - pinMode(2,OUTPUT);" v; V8 P9 o" V$ _$ d
- // WIFI2 j) ]2 e# B2 o+ g
- WiFi.mode(WIFI_STA);% V) g. C% ` ?4 w
- WiFi.hostname("Sparkle");
. Y. e# b) g, r0 W% h - WiFiMulti.addAP("wifi ssid", "wifi password");
5 g# y8 W6 U, j# @; j0 ~ - int tryNum = 15;
- c6 L$ h" O! j# V: h9 i% ` - Serial.print("Connect WiFi");
0 X+ i7 P: Y9 y6 E$ J - while (WiFiMulti.run() != WL_CONNECTED) {) E) w$ {8 V5 ?/ ^7 F
- digitalWrite(2,0);
* F- P2 d* t4 d' l5 ` - delay(200);7 |$ @% S4 n4 } @
- digitalWrite(2,1);- \$ p4 ?; h) ~$ @& D
- delay(300);
4 c: f+ w5 x& j; v* c- Z0 y - Serial.print(".");
$ q0 V% s5 q4 W& p/ D - tryNum--;3 U: d( H, b# J$ n1 G" L& r
- if (tryNum == 0) {* v+ f2 ]$ N- E$ P" P
- // 1min" v- e1 D3 s' ]3 b2 h0 D, N
- // ESP.deepSleep(60e6);
, k7 J% q% E. Q/ }, u! ~; V. P - ESP.deepSleep(0);8 S0 O! D# |1 [0 |) ^5 i
- }, R7 k5 X& J) g8 x# e* q
- }
\: U, B4 }. f3 ?& s - Serial.print("\r\n");% [' [* p" }* p, x
- digitalWrite(2,1);
" b" ]- G6 z) W# Z: ?' s1 X - Serial.print("IP address : ");4 t0 s8 Z" X+ y, A( \6 |, G9 v
- Serial.println(WiFi.localIP());! ?% U6 B5 w q) b% V' j: E# u' L
- server.on("/", HTTP_GET, [](){5 ~# e3 h" N, U$ X* I5 W- a3 c
- server.sendHeader("Connection", "close");% P, {; N+ [' [& m+ f
- server.send(200, "text/html", serverIndex);
& G5 r4 ^% Z8 s1 v7 b) `$ J - });/ d( e9 }: u% X. J# ~6 x
- server.on("/update", HTTP_POST, [](){
7 A& F2 L% n7 o3 l - server.sendHeader("Connection", "close");
2 e/ ]/ e4 r7 o' x8 U" X - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");& w4 v: a5 ^+ a8 O5 s7 Y+ X% P
- ESP.restart();
! N, v- N3 X7 V8 U) U - },[](){
1 T4 {& F2 }* p5 Y# ~0 T - HTTPUpload& upload = server.upload();+ y! `2 D6 ^0 E1 N% N# e
- if(upload.status == UPLOAD_FILE_START){$ c- ~& k [% B! v* b- G1 C5 b0 k( u
- Serial.setDebugOutput(true);
8 j, k. ^9 [4 U% K+ T8 } k - Serial.printf("Update: %s\n", upload.filename.c_str());1 q! g4 y1 ~2 g1 o# K2 R9 C1 V! K8 Y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. g- A+ ?& J8 ]8 b# p
- if(!Update.begin(maxSketchSpace)){) J3 H1 R$ K# p+ G4 h
- Update.printError(Serial);
4 e( v, A6 ^/ A( ~7 M; w1 N - }* W" Q9 J3 O# r) N3 C6 ]4 [6 e
- } else if(upload.status == UPLOAD_FILE_WRITE){3 @! U/ j- v3 D
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 |" _ u% ^; k/ I/ q' Q% _ ^7 R
- Update.printError(Serial);
* q# R' T1 ]5 c) ` w- p - }" g5 S2 C2 R7 E5 e
- } else if(upload.status == UPLOAD_FILE_END){
2 E# ~' t* E2 Y6 y - if(Update.end(true)){9 d. z, @( a+ ^" h, G' h
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" _+ D% R3 H2 p& A, a
- } else {9 j$ s+ O2 q; ^7 A; B6 K$ V0 _
- Update.printError(Serial);/ J: N% t# C0 c- R
- }, V, Q, D- f* f6 |
- Serial.setDebugOutput(false);) M& m1 v+ ~ J. M7 b
- }. k2 q6 q2 w3 N5 l
- yield();! U% N( |; D2 U5 M( ]: a
- });
k V5 I' y/ P7 j - 6 B, H% Q- e; D8 ]
- digitalWrite(2,0);0 }1 t$ V8 o. N+ E
- mainAction();8 p+ O* q0 h+ `
- if (digitalRead(0)){# e+ o% Z7 z* |5 |: x, h5 v
- ESP.deepSleep(0);0 p0 z2 J+ u0 _3 Y! Q+ f
- } else {+ ~& q9 l, ]5 ?2 p/ Y
- server.begin();
. N3 c; Q4 M9 W) S - }, s" J/ n! N, v& K( m8 N/ ]
- }
% i, ?2 x+ @" i - void loop() {
& D! C1 Q. l+ X# x; _" o g - server.handleClient();' u% z. {+ F6 h/ R6 `2 R
- delay(1); W4 l \' g, |# A1 R+ T2 P4 G. a
- }
, b% C; Z9 T; i$ A! A0 b - String doGet(String url){
8 w. M2 ~4 O/ G6 u0 ` - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 N j. @/ e- z8 P0 T5 U) U - HTTPClient http;6 o7 k! j" B! `' C" w
- Serial.println("[HTTP] begin...");# H0 r/ n1 a. M' m& B
- if (url.startsWith("https")) {
+ ?& ?3 r% k: o5 Z% f. C/ S/ I - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ k& Z: V8 C* A9 s$ M - } else { `5 Z0 e; W& N* d
- http.begin(url);
- F3 i8 b7 V& b8 e- t - }
6 w; ^; S8 @1 O( O/ v! d" g# Y5 d - Serial.println("[HTTP] GET...");
+ V# C, h% z" h# Q! I - int httpCode = http.GET();0 u7 R3 Y( y' c& W( a# U
- if (httpCode > 0) {
4 n5 t) K1 Z0 N. R) O. _/ Y - Serial.printf("[HTTP] code: %d\n", httpCode);
( L U+ M( R; z( C) Z1 K; | - if (httpCode == HTTP_CODE_OK) {7 y. r7 e* j* `( i0 o* }. F, G O
- String payload = http.getString();
5 b8 d2 M7 Q s" p# X - Serial.println(payload);
0 r% B% m" z# H5 f+ h' `9 V$ a - Serial.print("\r\n"); z% n) `% G' l$ {* q
- return payload;# a+ u1 c; |8 ~& }2 c9 ~! F. e
- }1 H9 U) @- q: G" y4 P3 K
- } else {! g! g$ l) q; @/ K; r( Y
- Serial.printf("[HTTP] GET... failed, error: %s\n",! R D; G, x4 Y, _
- http.errorToString(httpCode).c_str());
* j+ h6 h1 s( E# ?/ ~/ { - }
' X+ _& S2 L" T$ J6 j3 u) R - http.end();/ w6 {2 z5 c |8 l! U! k
- return "";% u# W% u+ u2 r3 E8 s
- }
q8 k% A0 A* [9 B) K) U8 p - }
# j `0 J8 L+ U0 a& G* v - void mainAction() {
$ I* E" l @; ?$ ^6 r( _5 s - // 发送请求! w# q: F4 n2 c/ D8 b4 D* M
- doGet("http://google.cn");
8 ^- n5 J( H8 V+ \$ g. \8 g ^ - }
2 y4 o: i0 p' u, P% k! E2 Y8 B
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