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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)
- k# a! y- T" I/ ]3 b- #include <ESP8266HTTPClient.h>8 z$ W- h0 S' ]* F$ [; |; k4 d
- #include <ESP8266WiFi.h>
5 j& v5 l+ c: l6 \$ V z- z+ G - #include <ESP8266WiFiMulti.h>6 @" {" p! b0 H* ?7 I( Y% y4 F! _" s
- #include <ESP8266WebServer.h>
/ I8 J7 c P. O. u. |) O - #include <arduino.h>
* h4 D, u2 G! ^5 C" j1 y/ U3 i: Z/ q - ESP8266WiFiMulti WiFiMulti;4 n! d7 C/ ?) n+ @, b( _
- ESP8266WebServer server(80);3 v. @& N4 x2 f' Q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 P# a+ M8 }% U q0 m* b
- ADC_MODE(ADC_VCC);6 o8 p9 l9 l* d% Y( o8 I
- void setup() {$ i+ k1 y0 x1 s/ H5 _' X3 @
- Serial.begin(115200);: ~) k$ O' p5 C1 ]- h% s" ~3 X
- Serial.print("\r\n\n");
' i; E# O1 B9 R' h2 p0 E* Z9 X - pinMode(2,OUTPUT);
, @& Q6 e4 e9 H: u - // WIFI
0 W" J9 @# V( \ a% _0 p - WiFi.mode(WIFI_STA);" T- u5 I/ G8 s- G: Y+ B, i3 W
- WiFi.hostname("Sparkle");
3 m& c, Q! P n5 ]# V. i; F - WiFiMulti.addAP("wifi ssid", "wifi password");
# l1 T* b$ g* o - int tryNum = 15;0 g6 `3 V# r& _5 h2 ]+ _; E5 o
- Serial.print("Connect WiFi");1 P1 W* K K6 x9 Q* P) H* @5 G8 g
- while (WiFiMulti.run() != WL_CONNECTED) {. j6 \/ Z- [- P, y% F. U
- digitalWrite(2,0);1 p6 g9 D: U0 Q; G6 h6 g
- delay(200);
9 B# S `/ p( r9 X# J9 \; Z/ W' F - digitalWrite(2,1);
' s' E& I' c' P& ^4 ?9 k; y' N/ M - delay(300);
; z9 z( S- Y, w - Serial.print(".");" f' [( X! x7 d
- tryNum--;
8 g1 i" U$ U; q8 h. _0 { - if (tryNum == 0) {5 ]" I @; R4 b0 l3 k/ ~" U) Z+ R
- // 1min
3 @/ F! R6 Q9 N8 ?0 d - // ESP.deepSleep(60e6);, J& |) f7 B! t& ~. E
- ESP.deepSleep(0);
% S# L6 C! {1 C4 A4 K. q5 t; t5 U - }
$ P4 s# Q! d3 n/ b3 o5 a! i; H - }' _% e( ]3 h4 ?, W
- Serial.print("\r\n");
- I" R R2 C5 p# m4 Q. X6 L - digitalWrite(2,1);
: _% V0 Y4 c4 n' q/ P) z1 |. Q - Serial.print("IP address : ");
+ `/ u% n* ~, V - Serial.println(WiFi.localIP());0 u; ?. V. g; r1 `1 t9 f) N
- server.on("/", HTTP_GET, [](){
, [! C8 }: Y: R6 D( @ - server.sendHeader("Connection", "close");4 H# s; E/ o3 O" N, O/ t9 P1 v0 x
- server.send(200, "text/html", serverIndex);
2 Z+ K1 Y a( V d f - });. A; D, D5 R: t: O1 V% ~. A
- server.on("/update", HTTP_POST, [](){
7 c7 g( Z2 m( A. m% W7 H - server.sendHeader("Connection", "close");4 C6 x! s0 w" s
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% H2 @" f& g/ D7 t: X - ESP.restart();
2 o8 C! D' p, j% s - },[](){
. i; H+ W+ _: h% @$ s - HTTPUpload& upload = server.upload();
& [1 i# ~' b- T ]( D/ \ - if(upload.status == UPLOAD_FILE_START){3 g3 l0 ~' g: [
- Serial.setDebugOutput(true);* E0 c( H0 s# Y6 K4 b- k
- Serial.printf("Update: %s\n", upload.filename.c_str());% g) W1 E3 N6 B, x
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 q+ l7 ^/ B, R. L8 n
- if(!Update.begin(maxSketchSpace)){
" g% [& I" s8 u# \) B$ r - Update.printError(Serial);" L; i5 m! O% u S& J- t
- }
$ `: c( R. A3 D - } else if(upload.status == UPLOAD_FILE_WRITE){
! E5 e# I1 F( }: F8 R* C - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 S: P; Q9 P9 d* v1 q
- Update.printError(Serial);
8 K# H' K d$ P9 |9 i, u! F - }
- x$ r5 E( ~( J* m/ ]1 L" v4 U/ ^ - } else if(upload.status == UPLOAD_FILE_END){
0 X8 M. {$ r; {$ P - if(Update.end(true)){
7 b/ z& R1 w" i3 m8 C6 z A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ d5 y5 L+ M6 S6 G8 e - } else {9 ^- w1 A7 k) [- I
- Update.printError(Serial);% A9 Z2 j3 @0 j3 i0 S! y* D
- }/ w3 E" M! ^" `) \& S
- Serial.setDebugOutput(false);- z3 D3 O1 T( y8 {6 e
- }
6 ^ p l. o" r5 f2 ? - yield();3 P, x9 y/ s, u+ i
- });
! V; k ]0 H1 K# T -
/ T S5 @/ X% O, F+ s( G: d0 V' n - digitalWrite(2,0);
) G( J0 c2 s3 _) S3 `% |2 r - mainAction();
) N5 G" B* f9 J3 M7 w9 t - if (digitalRead(0)){
# Y9 k: C; V) s: X3 L; D - ESP.deepSleep(0);
6 c! N |( t1 l8 T& Y- @8 h; b - } else {2 R+ t( l: Q" {6 [4 B6 I: j/ ?
- server.begin();
& M- v$ i/ z6 L% w& n2 v: n - }
& i' b3 h; b _7 D/ @8 j7 @ - }5 {+ P( ?" v5 o; z5 e5 r
- void loop() {6 t; M$ b9 X& a& K* D# W
- server.handleClient();
& M! a2 Y) u2 R& w - delay(1);
& G2 L4 o$ L4 ?! Z& S! B6 D - }4 _/ V, K9 ]& S( g+ X! C
- String doGet(String url){
; k- m" [1 L E) I& X$ g - if ((WiFiMulti.run() == WL_CONNECTED)) {( @1 r4 F; e1 l
- HTTPClient http;# m" V# U' G6 ~& D9 F* J, E
- Serial.println("[HTTP] begin...");
|( Q. R8 P4 S. n - if (url.startsWith("https")) {
0 [" _& u9 {' ^8 c2 U - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 J9 ~' ~, {- K7 X( Q
- } else {- t& w+ P, o: w
- http.begin(url);
4 j" N, d/ y7 W& G t& q - }
! q" i* M- a. |+ T* i# i$ T - Serial.println("[HTTP] GET...");
$ w+ l) n( c$ U" B9 R - int httpCode = http.GET();: V5 B. \+ s5 q& P* b' a
- if (httpCode > 0) {1 {. h! m0 j0 ^. [! A. w: |
- Serial.printf("[HTTP] code: %d\n", httpCode);
9 ]5 M- P2 l6 h# V; ~ - if (httpCode == HTTP_CODE_OK) {
8 A, a; S% Q2 \8 r/ n9 a - String payload = http.getString();1 i- h8 q O% k% c! Q7 S) \, w, K% n
- Serial.println(payload);
: m- O% T( L/ V! B: n. s: } - Serial.print("\r\n");
0 w- x- {& n( j+ a) \2 Y - return payload;6 }( y# w# [- f, j6 g$ J
- }9 Z: V+ r' y& j4 ~$ Q& g
- } else {
" p: n* j: m8 H5 G6 c+ G7 f! C - Serial.printf("[HTTP] GET... failed, error: %s\n",7 K" |' R+ A% o+ I, J* S4 r- ^/ H( j
- http.errorToString(httpCode).c_str());
W+ M/ C, s$ s, L! d - }/ G, t) X Q: B9 {0 G- D9 W& @
- http.end();( r4 Z7 F7 [6 N: R$ n# h
- return "";
; b8 ?& v7 E% P, G$ l1 y5 }3 H - }
g# E% C. Z. S( X' a - }
" @0 m( Z1 B; e4 E; k! z - void mainAction() { \- h3 @. @( H
- // 发送请求2 P/ ~2 L4 I; S9 |
- doGet("http://google.cn");
! D& f4 R2 ?# Y. m9 z - }
3 L% q5 m8 Q3 O0 i
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