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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)
1 ~' m- F7 B# g1 A. H# d- #include <ESP8266HTTPClient.h>
# F# ]- _. }8 f S - #include <ESP8266WiFi.h>" S2 d3 h3 {4 }; x2 h$ p9 Q) b" n! O
- #include <ESP8266WiFiMulti.h>4 U1 D5 f- \; U( A2 L! I$ L9 |
- #include <ESP8266WebServer.h>* R; N. S! L3 x( d* m3 L( | j
- #include <arduino.h>" Y6 G! x2 r& ? H4 w7 H+ }
- ESP8266WiFiMulti WiFiMulti;7 U. V- \; M$ i# _4 M
- ESP8266WebServer server(80);& t5 |2 N6 g) I1 L2 Z* X7 u+ |
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ `4 O9 s: l/ Y - ADC_MODE(ADC_VCC);
* X l' C7 L5 [ - void setup() {/ R, a+ f0 c3 A- }
- Serial.begin(115200);
, p; q: n, x2 J) |: C - Serial.print("\r\n\n");! p0 O2 |/ `. x" E( l
- pinMode(2,OUTPUT);# B4 A; H4 m: u3 O( W* Y: R
- // WIFI3 O/ j5 t) s% W( d* {+ }9 y
- WiFi.mode(WIFI_STA);
0 O3 d0 O1 i. @* @8 V8 M - WiFi.hostname("Sparkle");' o2 _% ^# h" p2 V5 U+ M$ g4 ?+ ^6 q
- WiFiMulti.addAP("wifi ssid", "wifi password");
7 E8 X# s, l D$ k. K7 l- z3 W - int tryNum = 15;
& ^3 O9 `7 C" e c4 ~ - Serial.print("Connect WiFi");; M0 h. ~% U2 Q! s3 C+ ~0 r
- while (WiFiMulti.run() != WL_CONNECTED) {/ `4 K9 {8 F8 o: I& `1 B) R
- digitalWrite(2,0);$ Y$ X& n3 L5 q$ M! o$ z
- delay(200);, D9 u( P! M2 j* ]2 x
- digitalWrite(2,1);2 x) {# e; P- s: }$ a
- delay(300);0 x) N8 m |" Q) \
- Serial.print(".");/ I. I4 v K: J0 T0 ~+ s5 p
- tryNum--;
9 Q6 n* Z$ g- }- s/ e) o6 p/ \ - if (tryNum == 0) {6 ^* p5 q7 O; a6 h9 }! |9 H
- // 1min& W. c. e; G/ m7 S7 [
- // ESP.deepSleep(60e6);3 a& C, t v9 p1 H1 i& j& |1 W- V3 b c
- ESP.deepSleep(0);' v6 K% H' [3 R
- }
v1 B; |4 ^0 ^. j# ` - } [; p, x. R- l& a+ Y" h6 n: Y
- Serial.print("\r\n");& e# m3 O1 G# {+ Q
- digitalWrite(2,1);
8 U: c {/ J8 }' {4 {' z1 V - Serial.print("IP address : ");; {9 Z# b( I% L& G q# w+ j* M# L3 c
- Serial.println(WiFi.localIP());
+ c* h7 s! r( y, o6 f) I - server.on("/", HTTP_GET, [](){$ d( a3 T, e( f" G Z
- server.sendHeader("Connection", "close");
: d y3 z7 w, {' I - server.send(200, "text/html", serverIndex);3 E9 @7 E( K+ P! E3 [
- });
4 a" i' Q/ s$ ^, K' Z F - server.on("/update", HTTP_POST, [](){, D! d/ i8 f% b: R8 U1 D: E, f
- server.sendHeader("Connection", "close");
m# k* ?: ?% t- @. s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- b- T/ k$ I; _, N0 K, y9 O- }* r - ESP.restart();6 T4 Q: `. y2 m! Z8 u4 Z9 N( `
- },[](){5 B+ e3 d' ^% T3 a6 [3 l
- HTTPUpload& upload = server.upload();8 t, d9 v, K ^9 S1 u; J& O' J
- if(upload.status == UPLOAD_FILE_START){6 e* N" b5 S) W
- Serial.setDebugOutput(true);8 S w U' U" O. i% m. F1 W9 }6 J( J8 ?
- Serial.printf("Update: %s\n", upload.filename.c_str());. B! t* N# U3 K6 _- I
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 H+ f' ]! q) q; l - if(!Update.begin(maxSketchSpace)){
7 _6 h, i% K1 }' |) W- A& K2 t - Update.printError(Serial);8 Z% N/ W2 {, K3 b, F0 R
- }
/ [0 p* z6 G/ n9 ]( t - } else if(upload.status == UPLOAD_FILE_WRITE){ ~" }% l% L% q& y* B/ a& K
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, T; ]2 B1 ]2 B- K) ~2 ~& U/ Q - Update.printError(Serial);9 F* |4 ~5 f6 ?9 E0 o
- }# d- X+ u- B6 E: S$ c
- } else if(upload.status == UPLOAD_FILE_END){* E$ q9 n) w- F8 C/ r' ], W
- if(Update.end(true)){
, B9 Z4 z% e& e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: t- J5 W5 d& s; r P$ m0 \9 d
- } else {8 _' T% x' y( e
- Update.printError(Serial);
8 U* v* C5 C: n5 ^" Q2 R - }; c8 @" c" v& J
- Serial.setDebugOutput(false);7 C: Y, q# r, y! V/ v( A
- }
" l5 N) M8 n0 d* b) n; y - yield();4 \# a1 @2 u1 N+ S2 c
- });+ L5 f5 _2 o5 r
- 0 a; S5 f( Z: k$ ~$ k
- digitalWrite(2,0);, g) s( m( m; a$ Q
- mainAction();
- w" a0 u/ B5 c+ d( F3 ] - if (digitalRead(0)){
$ V6 g7 y/ B2 a, [ - ESP.deepSleep(0); |, ?% q' m, S+ p; T! P
- } else {( |* o2 I& I- h- f
- server.begin();$ G& n) n5 M9 P
- }
q* x8 q! g, n) r+ F - }! F# s0 D$ T7 N/ K+ i
- void loop() {+ S5 `9 R6 w4 l/ [- H; r
- server.handleClient();
( {2 F, w- j; V' U6 |1 m' k, j - delay(1);* M/ L# `7 L4 C" Q5 J: H+ s
- }5 L2 |0 u. q% j, X$ h0 J
- String doGet(String url){4 f2 f; K( b7 M
- if ((WiFiMulti.run() == WL_CONNECTED)) {) N8 v) k7 [) i- j: V) g- Y
- HTTPClient http;
( u# r4 \4 t U6 { - Serial.println("[HTTP] begin...");! m. V" R* R6 F
- if (url.startsWith("https")) {
6 c4 y0 a ]# |/ z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 V: M! A( D! U+ \
- } else {
5 }7 g0 |7 O2 N. i) B' K& ` - http.begin(url);
: R& G2 |6 t* a p6 u$ k - }, U7 _& K4 M1 x+ G( d7 {
- Serial.println("[HTTP] GET...");
( ?- }6 {, ~* B% P- S4 _' |( S; n - int httpCode = http.GET();
/ `( k" ~+ f! G8 L* b8 e! ^2 Q5 J - if (httpCode > 0) {
4 L* x- _9 x. L5 G - Serial.printf("[HTTP] code: %d\n", httpCode);
, a% n. }9 R; N2 V; Z; D - if (httpCode == HTTP_CODE_OK) {
* l4 A2 I3 \! [* K; t2 c& z2 x - String payload = http.getString();. H" i7 j& Y5 j; s. v
- Serial.println(payload);
. X1 N2 P& d* ] Z" u6 S9 p2 ?/ ? - Serial.print("\r\n");% ?4 X& o- x5 T6 v3 f
- return payload;
6 q& I3 @ M: [% a( \ - }: M2 |2 [, d H2 q* S5 J8 A
- } else {6 }+ T! V {. E, v2 b
- Serial.printf("[HTTP] GET... failed, error: %s\n",% d4 B0 @' Z/ i/ H4 \
- http.errorToString(httpCode).c_str());
6 x& w7 g: x! l0 \0 ~ - }9 k) ]. l+ [% _/ f
- http.end();
, _. Y( s* j8 U - return "";
6 L& W7 W; O7 o% q1 ~6 V - }
0 y8 }5 L5 a9 ] P2 i2 C# |( T: ? - }
# w ?' X7 {, N. Z L' d - void mainAction() {
( y$ q3 M$ P+ n; Y1 O - // 发送请求
% j2 v: O& j$ [7 Z - doGet("http://google.cn");. V( w5 F2 o# S7 ^' u/ e3 x* P ?; w, f
- }* k6 }4 U- v; A& _% Y. @
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