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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)% v0 M e0 G N, T: p& w8 Z' v
- #include <ESP8266HTTPClient.h>3 C" S" i0 b7 g" Y$ u
- #include <ESP8266WiFi.h>
3 y% A* E5 x4 F9 w8 @, _2 l( | - #include <ESP8266WiFiMulti.h>7 Z& F6 ]. t) S
- #include <ESP8266WebServer.h>
9 {! z# S8 {" o; c! I/ T: L - #include <arduino.h> ^1 W: h5 B$ B9 Y$ v
- ESP8266WiFiMulti WiFiMulti;. ~; E) S ]* N" x9 }
- ESP8266WebServer server(80);
6 E2 T. U9 T' c - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# S, w+ P7 A& S. P$ K- ] - ADC_MODE(ADC_VCC);
' g0 M% n/ ]: \+ d - void setup() {1 T! _/ R; E# S, B& j& W
- Serial.begin(115200);- P2 l! @& y$ O9 M/ e) t0 q
- Serial.print("\r\n\n");! V( m1 d' ]! d- Z8 h0 {) V+ z
- pinMode(2,OUTPUT);
+ H+ s: h6 z+ f - // WIFI5 H& L" C+ i- R1 T( s
- WiFi.mode(WIFI_STA);, |* s. t- D- b- l$ Z
- WiFi.hostname("Sparkle");) ]7 h+ ^4 {3 q5 S' h/ ~. L, Y6 N
- WiFiMulti.addAP("wifi ssid", "wifi password");4 J3 M) b! Y5 |3 l! Y# X1 ~
- int tryNum = 15;
4 {+ {( U- D9 e/ o' g$ Z2 F - Serial.print("Connect WiFi");
3 F1 l6 j7 }, ?% f4 j( E# r) @: h - while (WiFiMulti.run() != WL_CONNECTED) {, ]. v# a! K7 O5 M
- digitalWrite(2,0);5 b5 _% b' e8 U. W) Z( S
- delay(200);/ i3 @ f$ {- M& X0 A$ z- a4 f
- digitalWrite(2,1);+ n, c% Q) E2 _4 P9 N
- delay(300); Y% D/ b% u9 M A! _ w) m) B
- Serial.print(".");
* T1 ^ L3 d% \: d( _ - tryNum--;. v1 H# o+ \" k% T4 T1 k
- if (tryNum == 0) {
! N3 z" h5 u* n: k+ ] - // 1min
`9 w$ }& `* i' |+ W - // ESP.deepSleep(60e6);
4 Y( i0 ^/ O2 i% @ - ESP.deepSleep(0);$ R0 b7 y$ b% u v# C
- }
( W; p8 Q9 G6 k1 D - }+ T( }: W# y/ f, c9 J
- Serial.print("\r\n");
' x. `' b/ B# V% g+ f0 C - digitalWrite(2,1);' l! I/ _9 }. r- g5 V
- Serial.print("IP address : ");- t* W9 A i2 n; Q
- Serial.println(WiFi.localIP());
. k& \; w) e2 x( c: N - server.on("/", HTTP_GET, [](){5 e6 z" b% @3 k( E, C7 v
- server.sendHeader("Connection", "close");
0 i' m- e0 i8 X0 \ - server.send(200, "text/html", serverIndex);, Z+ D8 p: o' ^5 {' \+ v! _
- });
9 o. @ ~2 p- Q8 p* g$ }$ f9 R - server.on("/update", HTTP_POST, [](){
' `& } p+ ~/ ^" L$ A - server.sendHeader("Connection", "close");
5 d9 n' b. x' u8 l( b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ G1 k7 o9 [9 r+ K, I) Q - ESP.restart();
0 n: D" \& P- Y% O! E - },[](){' J- _6 r5 \" Y- ?' |$ M
- HTTPUpload& upload = server.upload();
7 k* b Z, [/ Q4 i - if(upload.status == UPLOAD_FILE_START){
K: c# c# m/ }( b6 }" `! F - Serial.setDebugOutput(true);
0 E0 F# i) p5 {1 `2 ~1 o - Serial.printf("Update: %s\n", upload.filename.c_str());( q+ p, z$ r. p3 A/ ?( K6 ] n" _
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% @6 K0 b% a5 H+ e - if(!Update.begin(maxSketchSpace)){
. g$ {, o" n/ k' @ Y$ z. A' ~6 ^ - Update.printError(Serial);
5 D+ O" m, |1 e" t- ~ - }
0 ^2 w3 i) s* ?1 }' G6 P - } else if(upload.status == UPLOAD_FILE_WRITE){
# x- L0 y- ]# n. @; T' `6 i7 ] - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( r5 Q2 P7 b0 f8 c8 C
- Update.printError(Serial);2 P) _ L U" @8 B% d) H# n
- }0 _" d: C" R! P* s2 K. `
- } else if(upload.status == UPLOAD_FILE_END){
9 v) r. L$ S9 a/ ] - if(Update.end(true)){
* E2 @8 F: f' k/ E - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);8 N/ W" @* S, j6 |
- } else {" e9 [7 K" G9 F/ C" Y9 T
- Update.printError(Serial);( [, z- G+ r p
- }, i+ T- U# H0 V& Q! Y* t
- Serial.setDebugOutput(false);
p6 e. M& C$ ^: j; K0 \& p - }1 g; C- \5 j4 i: l& s& B
- yield();9 |* v. I( J! e. p0 S. u
- });
/ O5 W/ ] z* |' L -
' A2 O) M% a" o, S$ Y6 T: R - digitalWrite(2,0); ]5 Y" \" H* V& Y, j+ T
- mainAction(); {2 m8 |4 r6 x) Z
- if (digitalRead(0)){, s+ U' b/ S6 `- u
- ESP.deepSleep(0);
7 b- a0 I* k) D/ L - } else {2 s- J* u2 G" B% f ^) H+ Y
- server.begin();
5 U) o; r" z6 ~; a! w - }6 ]5 i# _1 u) ~2 U( {) t L
- }1 T9 L4 C2 r( Q1 d2 a
- void loop() {7 J5 u/ _; v$ d+ ~0 H* M L
- server.handleClient();
4 E$ ^. _% {" l" j$ N - delay(1);$ |; O( P$ A0 o2 G" b% d) b
- }
. d4 r$ D% n) q& W; ] - String doGet(String url){
' ~% s/ o& e, h' Q6 N' M - if ((WiFiMulti.run() == WL_CONNECTED)) {
: ?% {4 ]6 L: [! k - HTTPClient http;( P( |$ @: m4 i
- Serial.println("[HTTP] begin...");
% {4 o& q" [# C: z( x: m9 ` - if (url.startsWith("https")) {7 M: r2 e. Z4 g1 d( ?' R
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. o; I2 x$ ], d6 i. s9 k - } else {
# X% ]! v1 S. y$ e1 h3 h2 X; L - http.begin(url);
) {0 p6 U5 w5 \( |9 m" n& y) }/ B - }! T1 J9 J' @: ?9 V" [+ {
- Serial.println("[HTTP] GET...");" V7 G$ K2 K- w R H, b
- int httpCode = http.GET();
/ ^3 ?6 n! A; y+ l - if (httpCode > 0) {
' c6 j) p2 v0 [9 W( u( v9 O2 r8 N - Serial.printf("[HTTP] code: %d\n", httpCode);3 K! V- S3 X; ? n5 N' S) _
- if (httpCode == HTTP_CODE_OK) {
) }9 }' m4 v \7 ^6 P" `- t - String payload = http.getString();' N2 X& O4 b0 J ^! x' C
- Serial.println(payload);/ H# ?# f7 P3 H& ]1 H
- Serial.print("\r\n");3 y6 t M6 t! X" g! G6 |* j" l
- return payload;( }2 C) K x4 q% e- b+ _$ P
- }
6 l7 v9 u+ D1 l$ g3 G3 P$ ?+ c5 @ - } else {
4 k$ b2 A4 G) P# s+ l9 {( q - Serial.printf("[HTTP] GET... failed, error: %s\n",
3 j# ^& O, M" ~: n0 H6 } - http.errorToString(httpCode).c_str());
& b; I( x/ @' [5 f. W( e - }
. d r6 ^2 E$ ]4 s, M) ]' ~ - http.end();
7 W+ `6 O5 y9 ^5 r5 r; T+ g! d6 m - return "";
% Y+ E0 p4 m' b& b+ t - }
8 j) \% x5 i; h8 v8 c5 u2 G# \ - }
D/ G/ E+ X7 h. q, U. P - void mainAction() {
8 ?4 g' R) x* b0 U6 Q - // 发送请求
2 X. S1 @* _/ n, U/ o0 p - doGet("http://google.cn");
7 d% | Q+ {# ^! @ p/ Z - }5 H3 B8 C7 I. u* H. i0 N7 i
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