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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)4 Y; x( r. b% I6 V; V) Y% m0 Q
- #include <ESP8266HTTPClient.h>. B7 f3 Q0 o5 r" X+ P- ]$ z% H
- #include <ESP8266WiFi.h>( Z$ P5 _5 _$ v( w0 e
- #include <ESP8266WiFiMulti.h>! s- l7 I0 k% e" l1 e- i* E, Q
- #include <ESP8266WebServer.h>6 q: N8 N% u/ p
- #include <arduino.h>! j2 h+ q8 n ~0 z9 c6 l* t
- ESP8266WiFiMulti WiFiMulti;" p9 {) c3 t, K! R) Y
- ESP8266WebServer server(80);# X1 M; Q& ^3 @7 C% i
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 V& x# Q, s- p1 u! l# C
- ADC_MODE(ADC_VCC);" T' O5 _. G; _ Y- q6 Q1 P- b
- void setup() {
7 z) T+ M8 T' F% L: F: ]' R, X0 K - Serial.begin(115200);
: e( Y1 r; s; r- L; P - Serial.print("\r\n\n");
" f8 f5 a! g; ?6 |+ f - pinMode(2,OUTPUT);7 q9 v6 z) n$ C1 j3 p$ [7 U: I
- // WIFI$ `2 T8 Z* {! m2 q& J' \' ~
- WiFi.mode(WIFI_STA);/ b( w5 r2 T! C |8 Y# }8 S
- WiFi.hostname("Sparkle");$ ~+ x) {- \# g$ ]! V. a
- WiFiMulti.addAP("wifi ssid", "wifi password");' c. M: B2 ?8 R8 w! E" B
- int tryNum = 15;
: \ x5 E# ?9 c: n: a" h - Serial.print("Connect WiFi");
: ?/ a$ j4 J( G3 s" T# b5 @$ O) F - while (WiFiMulti.run() != WL_CONNECTED) {
2 [; ?5 ] r0 C# I3 { - digitalWrite(2,0); W2 q! o& T' N; R( N& H0 U: B
- delay(200);+ L( _, t5 N8 \# k$ K: D
- digitalWrite(2,1);- K7 r7 o! |" d# u8 ]7 T. L% f
- delay(300);3 y5 y" v: o# [# N% D
- Serial.print(".");
! ^# |. f2 L8 y" ?" ^; p9 Z - tryNum--;9 r0 L4 R y, d0 x# j+ B' c
- if (tryNum == 0) {* u2 C( n r k: D# o- o
- // 1min
: A F* m' a+ M - // ESP.deepSleep(60e6);
( a; ?2 f P8 Z9 q8 ? - ESP.deepSleep(0);
/ j) v0 Z7 b+ E/ A - }
( H( n/ C y! }( v& }8 F - }
3 Y+ l1 U# L4 H8 ^1 ?0 j7 S, X - Serial.print("\r\n");/ K% b8 G! H* |3 ]: I; n" e
- digitalWrite(2,1);
9 r* y6 g) ~3 W4 ^& U - Serial.print("IP address : ");
% E: s5 m* V3 ]6 u4 |& x - Serial.println(WiFi.localIP());
' S0 H5 U% m% j5 Z - server.on("/", HTTP_GET, [](){
3 D0 P& A; ^6 p2 B9 w$ {' q - server.sendHeader("Connection", "close");0 F7 }7 L1 s: _, T
- server.send(200, "text/html", serverIndex);1 [0 c. N0 t. d9 t, T I
- });" y9 F. v7 A/ u; v9 F- f2 p0 E
- server.on("/update", HTTP_POST, [](){8 d- J/ G9 O9 E* Q3 k! _
- server.sendHeader("Connection", "close");% V0 D( T& X% P+ i
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( b8 w: v6 Q9 g8 Z
- ESP.restart();, @# t6 R5 t3 k
- },[](){
% I6 ^& ^# u; L' ]4 P - HTTPUpload& upload = server.upload();
0 ]' D3 f0 F7 |$ n! \ - if(upload.status == UPLOAD_FILE_START){
+ [3 r* p4 `, [9 q4 \% f - Serial.setDebugOutput(true);
A6 }) B% t9 U/ D0 r9 {2 \" g" B - Serial.printf("Update: %s\n", upload.filename.c_str());
8 f- \4 G( T, t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% `3 _4 |, y& h7 B( r( p - if(!Update.begin(maxSketchSpace)){% @+ `; f7 `2 H7 J
- Update.printError(Serial);1 k3 {* @+ F4 \6 h
- }0 Z- W2 }" S( c4 q
- } else if(upload.status == UPLOAD_FILE_WRITE){/ r- Q0 i9 ^$ B9 N Z/ x+ F8 A
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; k! o8 D0 b2 [2 |- e - Update.printError(Serial);
( X' u6 L. P; b$ e - }8 O- {2 w1 Z- K0 Z/ i! n
- } else if(upload.status == UPLOAD_FILE_END){
+ e: M9 b) o4 S$ [# E; _ - if(Update.end(true)){
7 H/ o n' M0 w1 \/ U6 F - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 m& X; W$ S2 a0 e - } else {
5 ?, R3 E; e- g' f - Update.printError(Serial);
) d& f, \ f1 }% ^! i - }$ M( o4 i9 z' c6 Q6 [& v
- Serial.setDebugOutput(false);
1 v N, ?! q* W- l, R( i6 D - }2 `" \) A# r; j, Z
- yield();2 `; _2 ~# W' c: s3 }) q6 Z
- });& r) r* ]4 w5 D4 |! m3 L' H
-
; M# v+ C$ t, b( u3 e - digitalWrite(2,0);
* {! Q. M- p2 r6 ?0 g - mainAction();( A2 G8 o% }3 q# G. d, V' j
- if (digitalRead(0)){
2 r2 Y0 b3 ]' v! d3 U - ESP.deepSleep(0);
' n3 v0 g, p: ?' I - } else { x. n" m* Q6 B3 ~+ P
- server.begin();
' O m; A* s, i" J/ { - }) D% g8 ?# ]0 s% U% S! _
- }7 n- G, }" R0 ^3 X4 ^
- void loop() {
; y( ]) }# c5 F' X) k& Y - server.handleClient();7 Z. B+ N4 [) s5 G* A8 a. |
- delay(1);3 J. O6 ]2 s* ?- g
- }
4 M, H& h' H) m" Y- [3 {, ~$ N - String doGet(String url){
$ D; p4 c/ {0 s* p; p4 M - if ((WiFiMulti.run() == WL_CONNECTED)) {# D- N$ H% U/ N* w2 U
- HTTPClient http;
0 x" A" \* I: h5 J j! d - Serial.println("[HTTP] begin...");# y) _: D5 _% @) o$ s) F2 |
- if (url.startsWith("https")) {
0 S8 h( Z) N' ^/ |% ~; i: u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# O3 J/ I. N" b6 z- L
- } else {/ S) k6 t5 p2 P
- http.begin(url);
8 Y* T( N0 p' v: p/ s - }
4 f2 ~ @6 }) O! D- p4 P3 w$ P - Serial.println("[HTTP] GET...");
, W0 ?0 s: u) |& `7 ~9 Q - int httpCode = http.GET();
6 J2 A3 m9 k7 n* K) P - if (httpCode > 0) {' M' A" U5 [/ f' o3 w
- Serial.printf("[HTTP] code: %d\n", httpCode);9 h. H7 ~1 h; h/ G# e1 D0 {. ?) t6 O
- if (httpCode == HTTP_CODE_OK) {9 z; H/ \2 k' t) e' H
- String payload = http.getString();! Z* c. P g) A3 C
- Serial.println(payload);
- @7 B5 O' G+ [! G( x2 k# e - Serial.print("\r\n");( F* P0 C/ M( \# t- v; y& q
- return payload;
z6 @& {) K5 g. x( _$ Z - }
- a- C5 }0 f3 R2 f, F B - } else {. Z$ `5 p. W0 R& i$ H& q
- Serial.printf("[HTTP] GET... failed, error: %s\n",5 A' m4 C; z1 _$ H
- http.errorToString(httpCode).c_str());; k" N7 `- C2 d1 b8 Z6 K0 l/ S6 Q8 y
- }5 I: m, z/ n }+ c; P
- http.end();
" g% S A" }) X: s% H - return "";
* E1 n3 c8 B0 Z3 Y( n - }- Z: V. q( g o4 I) [
- }
& c: M9 U5 i7 W- {$ P# ] - void mainAction() {1 x5 j- t6 o( v! x6 u. `9 |
- // 发送请求, _' Y% j5 n! x, f
- doGet("http://google.cn");1 p) F8 L% {9 l- I7 A: R' L* F$ A
- }
~3 m! S, U/ y$ x$ ^
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