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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 f* L5 b7 O t
- #include <ESP8266HTTPClient.h>9 ?+ S) A" v6 g; J- J0 g
- #include <ESP8266WiFi.h>
! {! i8 H2 m/ H( ~, D0 F8 A$ M - #include <ESP8266WiFiMulti.h>
* j2 d2 ^5 [* \: v& \ - #include <ESP8266WebServer.h>+ z8 n% F! Y+ v5 _8 d
- #include <arduino.h>
2 U, O1 @ E, q& W - ESP8266WiFiMulti WiFiMulti;
0 e8 ]1 E" P( [! B' O3 J. }4 w - ESP8266WebServer server(80);
; ?( K# ]9 k o% @& i - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
M5 w/ ^' z7 z2 u" D( h- `7 j( y& { - ADC_MODE(ADC_VCC);
2 @0 K) b. ]/ k$ c - void setup() {
9 N0 j% [: W( c1 C - Serial.begin(115200);, e, E" V, M& @! m
- Serial.print("\r\n\n");
9 T' M/ `. Z/ \6 C2 e! F - pinMode(2,OUTPUT);
9 j9 x; p( z! z' ^4 x - // WIFI
, q1 p' H- }: O! \. Z& f - WiFi.mode(WIFI_STA);8 S0 d! e3 E: [! v5 C( X- e: U
- WiFi.hostname("Sparkle");% i# ^7 z; ~2 m6 Z
- WiFiMulti.addAP("wifi ssid", "wifi password");8 T7 l: j( w% U$ o
- int tryNum = 15;3 l: b% W( }* y T S3 N
- Serial.print("Connect WiFi");* R/ ~0 q* Q2 t' C/ ~
- while (WiFiMulti.run() != WL_CONNECTED) {) J! l* w5 S' \8 I$ ]. G0 }
- digitalWrite(2,0);. L q, s' U) T
- delay(200);+ J+ y$ y7 K7 L+ R U0 C3 l
- digitalWrite(2,1);
$ S( |' O0 b$ I6 @. u - delay(300);
2 t6 e! D- u& b3 Y2 j0 ^- T V. n - Serial.print(".");% Y* T2 d$ C% K! |3 u
- tryNum--;
& f+ u. ~4 z5 p" s% B* N! V: n5 k. E- x - if (tryNum == 0) {
: O! @( `7 b/ \, `& i& d' d - // 1min5 d, L0 s7 ^1 W2 v
- // ESP.deepSleep(60e6);
+ @ E/ L% S H- I - ESP.deepSleep(0);
6 f4 M$ j @; D! {; B. W! k+ M Z - }
c" a4 o- Q- n& f8 o2 L' R: g - }6 s* j( ]! v. E" h# Z' X1 j
- Serial.print("\r\n");' G, x1 k/ r- ], N5 p
- digitalWrite(2,1);
+ D) m$ U9 k0 G. D9 S | - Serial.print("IP address : ");
8 a- Z$ b' T; |. W0 d/ F6 F) x - Serial.println(WiFi.localIP());
! e1 F, N1 G2 M - server.on("/", HTTP_GET, [](){
3 m0 }4 S [0 l3 Y! n3 g - server.sendHeader("Connection", "close");0 C3 Q! m, ~6 e; K. ^4 {/ Q1 p$ h
- server.send(200, "text/html", serverIndex);! I8 e; U% J7 L& F2 G; W( Z9 R8 Q
- });! y8 E$ w; E+ Z
- server.on("/update", HTTP_POST, [](){
3 ^/ r; w9 {4 {7 R* h' H# @; p - server.sendHeader("Connection", "close");& D$ D3 L- Y2 T5 w6 g3 {
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 Z6 O, r+ ]2 E3 B
- ESP.restart();- J; k+ {; j( j7 k& q5 j* ?
- },[](){" V. f8 n6 g( K$ `1 d& _( c. d
- HTTPUpload& upload = server.upload();9 S7 n7 H' W P. Q2 t) z( w
- if(upload.status == UPLOAD_FILE_START){% T2 [. {( p: X) F; r
- Serial.setDebugOutput(true);% z3 ~( l9 x0 b, |+ w
- Serial.printf("Update: %s\n", upload.filename.c_str());
5 l3 X V/ n; C1 {* i - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 B! H( S( U. P/ l9 Q& R - if(!Update.begin(maxSketchSpace)){
: p' c1 Y1 P% q' O - Update.printError(Serial);
6 r* g+ J4 i! o) `6 Q. w/ `" Z - }" s0 f& C% H# a8 u8 N
- } else if(upload.status == UPLOAD_FILE_WRITE){
+ i; Q, X2 t/ _" H) V( Y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; C* J) w; O5 G: P4 c3 p6 i2 s - Update.printError(Serial);+ T5 s5 z, |* V; U+ J5 x' m; k4 g7 [# c# y
- }$ }) F( _' k5 P9 M1 l# T- c
- } else if(upload.status == UPLOAD_FILE_END){8 {6 S3 G) h; f$ k
- if(Update.end(true)){ K9 h$ r/ e! z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. S/ D! v& s4 e' ]( d' U - } else {
, j% G$ W) x" I" R, E) ?+ |% a - Update.printError(Serial);* ` Y+ M- S% W9 P% T: i" R7 p
- }
% n8 k* w7 ]; P5 R( H1 d2 l - Serial.setDebugOutput(false);3 u7 j/ j/ v% b1 A8 z/ G9 n
- }6 n" C+ _' R% Y0 G0 _! u# u8 D
- yield();" f; O) `2 M8 h' ` w5 f
- });
5 @ Z7 Y( ?& O% ~* \ - & g7 m% h3 v( m2 E8 n2 N! v; B2 H
- digitalWrite(2,0);9 b& R6 n$ G7 G
- mainAction();2 |- v) _6 E. |7 m& q1 P
- if (digitalRead(0)){ [# w$ ~3 S6 P# X
- ESP.deepSleep(0);
- W5 a/ P+ J9 W0 e+ |* D+ D5 Y& o* w - } else {
/ N2 X/ \6 P5 Q - server.begin();
% c Y+ {/ M7 |- O4 L. t - }
: S: L# R$ s: [$ {* |* s - }1 C( v5 K% f' |6 {
- void loop() {9 c) O8 H& Z r7 |8 t3 Q
- server.handleClient();
8 u1 e9 p* ]. Z: ] - delay(1);
) n: ~) r& Q) z# M$ ?1 y - }
- }# E. T9 v& y& m8 V0 w* i - String doGet(String url){/ @) N0 m( {+ n+ Z/ N! b1 n/ F
- if ((WiFiMulti.run() == WL_CONNECTED)) {
7 L2 ^1 E" F& e+ ]( x; \" h - HTTPClient http;
; x- F& S8 F* ?, i2 M7 ]% B% E7 S$ a - Serial.println("[HTTP] begin...");! l% ~1 Q; T0 _# q
- if (url.startsWith("https")) {
. C! g4 V5 |/ X7 w8 M, v8 o Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ }6 _" Y- N: ^ - } else {
' P/ P- d4 _, @8 Q/ W - http.begin(url);
; Z+ k$ z' V9 `* I4 l, s - }- ]- \, I% ?, L3 A+ K0 k& H" h
- Serial.println("[HTTP] GET...");
) V- K! v6 N6 s# z. h+ Q - int httpCode = http.GET();
( A: O' \! n$ o/ e3 e - if (httpCode > 0) {
1 \% M( L) }/ t3 r9 S - Serial.printf("[HTTP] code: %d\n", httpCode);
$ w' V7 L }9 i% g/ M/ m - if (httpCode == HTTP_CODE_OK) {
5 U: n& P. o7 P/ h - String payload = http.getString();- u; E4 x, `( f9 @! g
- Serial.println(payload);& F, {8 O+ Q4 u
- Serial.print("\r\n");
3 o! B* V1 L z Z - return payload;
" k* h9 ?$ e" v$ ]2 u - }
6 T! Y! s' N) R: L# _4 u7 M+ K - } else {. t0 J5 @) ~* k8 g% p
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; `# I# X$ R% O: M% _3 W2 S - http.errorToString(httpCode).c_str());
0 J* n( ^! R W. o0 M3 n - }" q6 Q* T/ J; c- d
- http.end();
" J- u) y: Q' e8 X; i - return "";
- \, k1 K& X3 C8 K# |) ?! | - }2 v# E+ j. ]& z4 e2 [( z# B# I
- }
9 E6 \# a* o" V9 |9 q - void mainAction() {3 \- h8 \+ {0 k
- // 发送请求
5 P2 k: w3 Z$ A* O- s; b+ Z1 u0 q6 v - doGet("http://google.cn");
. O+ F& l) P# x T( c - }4 M% }3 A: g: W$ M) B$ ^/ C5 C* [
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