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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)
7 u2 O$ E2 x; @9 B. E1 J- #include <ESP8266HTTPClient.h>& X9 P8 h+ b* n$ I" c# {
- #include <ESP8266WiFi.h>
- M) \( \3 _+ U/ K$ ? - #include <ESP8266WiFiMulti.h>4 d1 i: }. o$ p2 e# i2 N _
- #include <ESP8266WebServer.h>7 L n( z" U1 _4 c1 y
- #include <arduino.h>6 I2 W7 V' \6 G: ?- N
- ESP8266WiFiMulti WiFiMulti;
( d6 q$ F6 c- }3 r' O; a; w - ESP8266WebServer server(80);5 [8 z0 C3 N6 m
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 ?; W6 f" o) m% K e' Z - ADC_MODE(ADC_VCC);
9 R( G; @. t# l - void setup() {
) v6 m5 B1 t8 U' b' \: F - Serial.begin(115200);/ x) M2 Q$ I/ \1 V5 L0 E8 x* _
- Serial.print("\r\n\n");5 D1 c1 _3 |+ K/ d4 |0 v# W: L8 |) g
- pinMode(2,OUTPUT);
( O, v9 O1 g/ Z% x2 O# v' T - // WIFI
. X. L' C, C# Z# D) G; ]# T- W - WiFi.mode(WIFI_STA);
& K& t1 E: d# \* T. C: P0 ? - WiFi.hostname("Sparkle");# U& W$ |! w! [, M
- WiFiMulti.addAP("wifi ssid", "wifi password");
* h+ a3 J% d; \! | - int tryNum = 15;
3 l2 O8 ?! S' Q$ S7 J - Serial.print("Connect WiFi");
# Z# o8 V: ?1 @- q/ F; E2 P - while (WiFiMulti.run() != WL_CONNECTED) {; g) H8 g5 _/ `; ~
- digitalWrite(2,0);
0 ?5 {1 r+ g# y# n9 W - delay(200);2 x8 `& {: k; a# o/ P+ @! L E
- digitalWrite(2,1); S' g/ {/ b# a4 A( Q
- delay(300);
! @& U. E$ |/ [: R# z3 W t - Serial.print(".");' G; a2 H1 u3 U( I' n% I
- tryNum--;1 b- d0 Q; V! J( D9 i Q# I
- if (tryNum == 0) {
3 [2 P6 [1 C! [3 h - // 1min
5 v# D0 X" D; G: O' s - // ESP.deepSleep(60e6);
% s' J' Z! s' v: `( M0 t" r+ H - ESP.deepSleep(0);5 y8 }. ?) e T
- }; F7 F$ _! D0 _7 U/ r
- }
1 N, ~# A! Z- K- @8 S - Serial.print("\r\n");" X% K$ ~1 F- N, ]2 m' F2 J
- digitalWrite(2,1);1 U: ^* E' u/ @' k9 {" A9 X
- Serial.print("IP address : ");& s1 i! a4 U+ ]4 o/ H& ~+ M8 I7 R3 s
- Serial.println(WiFi.localIP());
7 H+ F/ G# i% R; K7 J: b7 N' q/ V9 V - server.on("/", HTTP_GET, [](){# B( @2 I+ M% e7 d
- server.sendHeader("Connection", "close");
( q. B8 u0 V* U+ ~) q - server.send(200, "text/html", serverIndex);
! T% u# n* ^& |3 B' K9 T0 e- T - });) F& y+ Z4 ?4 [1 N, K
- server.on("/update", HTTP_POST, [](){
- V8 u% p3 X0 p& K. [3 p& z1 o - server.sendHeader("Connection", "close");, C; B" ^2 c- o. x3 }9 D9 W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( m- }8 u% \% W* ^+ G7 `5 K) D
- ESP.restart();( D. M$ Q4 A {! V3 K5 g" D
- },[](){
3 d% R: E) ~: M0 H4 l$ @# X - HTTPUpload& upload = server.upload();
$ r6 }# y x0 A+ ~/ R - if(upload.status == UPLOAD_FILE_START){
# C1 F# B% v8 J& `9 n# U - Serial.setDebugOutput(true);$ z) y z" ]( \5 L" z% F* R! \
- Serial.printf("Update: %s\n", upload.filename.c_str());, x6 O' S" q% J! G% k. D
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! s n% U7 H* X3 E/ c - if(!Update.begin(maxSketchSpace)){
$ P. q) B; `" h( V. T- n - Update.printError(Serial);
+ d1 V8 m3 A: v$ L- x O% O9 v - }& E8 T/ Z' ^. Z9 R3 E$ F
- } else if(upload.status == UPLOAD_FILE_WRITE){
: T' g- |! T2 B3 d - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 _0 X/ {0 {1 ^% D" t& ]0 t- H - Update.printError(Serial);
0 p2 o3 B3 [5 [& Q; q2 o( e - }
+ z. t! s1 Q3 n8 } - } else if(upload.status == UPLOAD_FILE_END){ M2 y% s8 p' \% W6 w
- if(Update.end(true)){
; t# A1 U. Z5 P0 Z- ?; _4 t" b - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; t" B. q3 G* r
- } else {# n( M1 b) o' R% s- E Z1 n" [
- Update.printError(Serial);! F, E9 P, M& {. r
- }. d3 a* u+ p& D- B
- Serial.setDebugOutput(false);
" b5 k# L" |# W5 _ - }+ f" y8 }% S) O8 l& A
- yield();! }6 \0 ~8 D1 V3 D+ Q: }' ?
- });" J3 C. a% _1 V5 h! I+ E# `
-
9 x" X( O- R& F0 c2 l2 R - digitalWrite(2,0);+ R" W+ H$ J/ H; j: E) d
- mainAction();
' o7 T: \( J7 g- B0 J3 E: N - if (digitalRead(0)){
6 J* t$ M$ ^+ H! V$ S1 R9 g) @* M - ESP.deepSleep(0);
2 A$ I, s' Q6 k9 k2 k - } else {! X) @4 E8 G. L( A
- server.begin();
2 R3 `3 n8 o1 d - }6 m# j9 E% p) T- F% T L
- } Z0 [: r5 w0 @; q2 m
- void loop() {: X8 U9 K) T/ N
- server.handleClient();# T: E; L8 e7 A0 U
- delay(1);- w4 F5 I, A* j) i( D2 o U
- }
* X( ^' e$ f8 ]3 t9 A2 B - String doGet(String url){
( T$ }0 V ]# B& J - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ v7 ^" L$ {! W3 E( L3 W - HTTPClient http;5 [, l0 J* \' f6 m D+ ?8 W' U0 L9 H
- Serial.println("[HTTP] begin...");
' a0 Y; j3 Z! u& y% X: ~: k& B" { - if (url.startsWith("https")) {; W+ J7 w* u! |
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! b9 E% O6 r: }! D - } else {8 t7 O" s4 D# {0 ]' i/ j6 U
- http.begin(url);
\) C9 Q& ]% a4 g! m% n - }
( f/ ?; O2 l! Q9 z. m5 }- p# X - Serial.println("[HTTP] GET...");$ \% E! w, V" s8 J+ f$ D
- int httpCode = http.GET();
; J. r# f3 [' \) w* l - if (httpCode > 0) {
0 F1 z4 A( u9 _ W - Serial.printf("[HTTP] code: %d\n", httpCode);1 K" ^$ K" Q2 n7 B4 o9 k
- if (httpCode == HTTP_CODE_OK) {
/ v+ e% l9 k* k8 ^. W x3 g - String payload = http.getString();
% M9 z: f6 `4 u - Serial.println(payload);: P6 g5 I( u- C t/ l! q6 I4 \
- Serial.print("\r\n");$ y: G w2 q7 q* R( w
- return payload;
3 j9 d2 Q) x! ]3 t0 l7 t7 j1 a. r - }
8 \$ D5 ^ l0 O3 u6 d! a - } else {
! Z9 Y7 v. a# P( [; O: v" Q - Serial.printf("[HTTP] GET... failed, error: %s\n",- m% n; s2 @: Q6 ?. N3 l+ l
- http.errorToString(httpCode).c_str());
* _+ ]( I9 N4 N( _! X - }
7 O& F- R* V' t+ g8 w% U! \ - http.end();$ [# ~- }+ {6 ~
- return "";
0 _0 x; ~" ?, y" | - }
. p" l. y4 X }: P S9 i3 \- t" e - }3 U C5 h- o7 R0 K) c3 V
- void mainAction() {
$ g2 S! `2 w7 e8 z - // 发送请求
: p X' G) H+ ^* p - doGet("http://google.cn");
% g. Y6 F# n+ p$ J$ z - }
- R: l( R, m( h1 w! B% U
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