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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)
% b) a# z8 L2 e5 |0 T' O& \, P" F- #include <ESP8266HTTPClient.h>
0 n4 [0 k, `6 M' g; w, _3 g8 S - #include <ESP8266WiFi.h>
9 T# H3 ^5 E& ^% c& u" o& x - #include <ESP8266WiFiMulti.h>! \; O! d/ }8 E | I
- #include <ESP8266WebServer.h>" h8 l9 x# Y4 q
- #include <arduino.h>2 P6 \$ L+ b) B
- ESP8266WiFiMulti WiFiMulti;( z$ N7 v* ^, u7 t+ ]0 j; F Z
- ESP8266WebServer server(80);0 |2 N5 ~' @3 W0 V
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% \! u) h- W6 I% @ - ADC_MODE(ADC_VCC);
2 r4 M& r Z9 L9 q# _; Y( m - void setup() {
9 m6 c6 E2 a' f - Serial.begin(115200);+ g. F# g- q' i3 \7 J7 x& e3 h5 b
- Serial.print("\r\n\n");
* {/ w0 m4 r; e - pinMode(2,OUTPUT);+ S& f4 |4 f0 u
- // WIFI4 ^+ @3 ^3 K8 N5 S
- WiFi.mode(WIFI_STA);4 U% v% C) S" { u4 {
- WiFi.hostname("Sparkle");: A9 i+ c- E, U! h, L
- WiFiMulti.addAP("wifi ssid", "wifi password");
' D! Z, P; \5 x - int tryNum = 15;
9 U: F( u( a. `; h! [2 x7 i$ a - Serial.print("Connect WiFi");
6 }0 n& r2 o* a) ]! ~( T - while (WiFiMulti.run() != WL_CONNECTED) {5 ?& ?' Q& B, w& _
- digitalWrite(2,0);* A+ M: V1 P6 [9 o
- delay(200); _5 X7 n# d9 T/ `* O
- digitalWrite(2,1);
, K" J, [! K7 m9 ~, ] - delay(300);! q- z# U4 v8 p* Y. u0 X$ u) ?
- Serial.print(".");
! @9 K; p: z, U6 q9 H K9 j! @ - tryNum--;
; L7 |2 c! d( W$ p* J - if (tryNum == 0) {7 o. x% ~0 d+ x9 C
- // 1min% F* T0 s+ Z& _" i6 T7 \1 ]
- // ESP.deepSleep(60e6);* Q& H, T4 b* r0 R
- ESP.deepSleep(0);
, \7 y+ [9 u$ D m# l' e2 M* [ - }$ X/ k* s7 I8 e) K: j) R* I4 i* V
- }
7 ^1 d9 ~2 x A# h1 \: j a - Serial.print("\r\n");
0 c+ A$ \% O2 l# P - digitalWrite(2,1);. v/ b4 w* y; v% v& v
- Serial.print("IP address : ");
$ Y% V1 S: S$ e9 @1 v - Serial.println(WiFi.localIP());
4 k% N* M# m$ X: Y( U - server.on("/", HTTP_GET, [](){
" q' [7 v, l# R) Y6 d8 k - server.sendHeader("Connection", "close");( |/ l$ E; g) b
- server.send(200, "text/html", serverIndex);
F% ]( j/ f) a$ l: { - });) h& l( }2 [( A6 a& ^2 j0 N) L( T& M
- server.on("/update", HTTP_POST, [](){% q9 M; M) W+ v0 H
- server.sendHeader("Connection", "close");
: l( p4 \6 R" C" f - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 l* @% U- N3 C7 f" _! g: Q0 o1 Q$ { - ESP.restart();7 b: t; h$ L4 e4 E' n+ e* \
- },[](){6 {9 x5 q& h6 e$ O2 M0 W! F
- HTTPUpload& upload = server.upload();9 W8 Y* X) g4 {+ S3 J7 X
- if(upload.status == UPLOAD_FILE_START){# c! Y# d" V" G, X: d$ U
- Serial.setDebugOutput(true);1 ]/ s" v X. T. I; O$ Y
- Serial.printf("Update: %s\n", upload.filename.c_str()); I q* h0 k0 z0 `3 P
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ \) R1 G% P# `- v% e
- if(!Update.begin(maxSketchSpace)){
5 ?! d) [( P( }; v8 i - Update.printError(Serial);
: K) r; T3 M/ G0 G - }
4 t6 m2 Z& b( A$ k3 i$ Z) | E' d7 |2 y" {! q - } else if(upload.status == UPLOAD_FILE_WRITE){7 M3 X( K! ?( W; E1 N3 t
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 F3 x4 D! D3 d, w* w: f+ j, V - Update.printError(Serial);
8 v8 K- [0 l- z8 l) ]3 R! D - }
# z( p# j3 T& ]4 C& T" O# d - } else if(upload.status == UPLOAD_FILE_END){
+ `$ I9 o7 j$ n+ j$ M; W+ ^ - if(Update.end(true)){
: T! b( h. D: o( \ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) w- V$ T# Z: B, c! v: [# \+ d - } else {
0 K" x! B$ f% j ^ - Update.printError(Serial);9 \* v- h" p5 j* @. B
- }$ r/ d+ o1 ]0 V+ S; _
- Serial.setDebugOutput(false);. _& V+ {+ y# r
- }. }4 o0 |, r) K2 K1 u- J
- yield();; Z: v5 g" ?/ J o
- });1 [) F7 ~7 V; u0 R- M
- 1 l8 \" h2 ]0 `8 Y- A" C: H
- digitalWrite(2,0);
o. k/ E4 K8 q1 D - mainAction();" ]( ]. [0 q, ^6 Y8 [
- if (digitalRead(0)){
; r) q7 c _' @: P7 F - ESP.deepSleep(0);
; Y! [! d2 |2 G. W6 Z$ b2 r7 Q - } else {
; C9 m2 F! Z2 v: R( S y - server.begin();* p M8 N3 E) l9 p( E( ?
- }
* e* q9 G7 S9 d; h, S - }
- j: I+ s9 }1 Q6 {8 e - void loop() {& v( ?/ m* [. U9 Y# N4 U
- server.handleClient();3 M# J# }2 h. c& e( c/ I
- delay(1);
: n) S! x' J$ i, n$ t3 |( O/ M/ n; t - }
* B* L( b) U' H9 s% w - String doGet(String url){
- F5 O' u# a6 C- J1 c- _! P5 K) e1 ]* e - if ((WiFiMulti.run() == WL_CONNECTED)) {- @; z2 @# ?2 L4 Q) r7 _- K
- HTTPClient http;
* O3 K( z5 ]5 |+ H8 ?1 Y. |/ ~ - Serial.println("[HTTP] begin...");
% g5 i8 {6 {7 w( e* j - if (url.startsWith("https")) {& d, `! z2 d. @/ F# s+ c/ _' g5 N
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. O5 _; ?0 y9 m; { - } else {
& f7 I8 q' T5 S3 F" d- Z7 _ - http.begin(url);7 A) V8 X Y! j) B4 L7 |! q
- }2 {% B' P$ w1 n z2 @
- Serial.println("[HTTP] GET...");0 H" |9 r% E, K8 u6 o( H. Q- J- w
- int httpCode = http.GET();, [7 o$ L' l$ G+ X& j7 Q a: x& ]
- if (httpCode > 0) {' {9 j. S9 F3 W3 f
- Serial.printf("[HTTP] code: %d\n", httpCode);1 ^( U" S% V6 _% x
- if (httpCode == HTTP_CODE_OK) {
$ l4 @7 p& P7 ~ - String payload = http.getString();
& W E3 b6 h, x% V - Serial.println(payload);- `( G1 g l* c2 S' e0 @
- Serial.print("\r\n");3 E* a) V" E/ e0 ?* S
- return payload;
- z: Z, `& y* F' b* e - }0 ?1 z9 h; W- v, w
- } else {
" }$ q$ H& G2 P- w4 N# J' k) z - Serial.printf("[HTTP] GET... failed, error: %s\n",3 Q" y# K( k, g+ e! L/ P- g
- http.errorToString(httpCode).c_str());
5 m; c: u/ Z- ]% y# U& N - }: C r0 t0 Y) p% `$ ?
- http.end();: y; A. q8 w" Z j) | n
- return "";8 M' ?9 a) x F% ]' d5 T) u
- }/ S% `8 r# D0 ^$ o
- }
7 @6 d7 j* f) s# y" L9 x G6 ~" \9 [ - void mainAction() {
% {: H" S" S( y }6 X& r6 A! V - // 发送请求* H. b, E7 g# F. L
- doGet("http://google.cn");8 X' M$ B/ n9 t2 [
- }, l3 P) c2 u( D0 u0 W% C9 c0 m8 U
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