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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)
S* d X, V" U0 a3 W' `) X- #include <ESP8266HTTPClient.h>. ~/ J9 j0 _! u/ K% R g
- #include <ESP8266WiFi.h>7 e& {) M) a3 `1 F
- #include <ESP8266WiFiMulti.h>
3 s* l3 t' `8 X# `. n) H5 f - #include <ESP8266WebServer.h>
( T. p, d& e8 J- \5 @7 U# l - #include <arduino.h>
: A/ j r2 `& I6 ` - ESP8266WiFiMulti WiFiMulti;
- x" ?) A7 L$ E- f2 S/ G - ESP8266WebServer server(80);' y2 I: d2 y- N
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 C6 N5 w) y4 ^9 d - ADC_MODE(ADC_VCC);
; {: z) E1 s: S/ x# {3 ~6 U - void setup() {
2 F' c$ X3 W! v - Serial.begin(115200);. s* z4 J4 v$ q
- Serial.print("\r\n\n");
3 a$ m2 N, d' g) ]1 P I3 I - pinMode(2,OUTPUT);, C1 U9 ^7 _, y* h& l9 o
- // WIFI" \$ K+ V2 l0 i+ B% T6 J7 R x
- WiFi.mode(WIFI_STA);7 G% ] n9 e1 t' j; H# q+ r
- WiFi.hostname("Sparkle");
6 o, R( I6 n1 \* ?+ x- y( f6 C" o$ F8 d c - WiFiMulti.addAP("wifi ssid", "wifi password");% f( k! `1 }6 ?) I( l9 t+ {
- int tryNum = 15;
% B9 ]% M2 U: W, q* {9 T& r - Serial.print("Connect WiFi");( K0 b& D% X7 Z7 r8 F, i \
- while (WiFiMulti.run() != WL_CONNECTED) {( y' j6 [! g4 D V
- digitalWrite(2,0);+ W6 e( {3 h; C2 S* V2 W! l
- delay(200);
* ^2 R2 b6 {6 R/ J. D - digitalWrite(2,1);( S- @0 v1 I$ m4 O$ |) u
- delay(300);
& p* A5 l6 t* b A( C - Serial.print(".");, _# ^2 }1 K6 ~
- tryNum--;
9 e3 Z$ V+ t- f+ Y) O6 u% A+ d - if (tryNum == 0) {
5 E3 R& z: M( x - // 1min
7 z5 L* {# B& a& q - // ESP.deepSleep(60e6);( O4 X, O1 p x' A% e" ?3 w
- ESP.deepSleep(0);
' p Y$ F* g. j' c, j" _ - }5 j8 f7 ~( {# d8 r) W" a7 q8 b& X
- }2 w! @. S) w/ R: y4 m% L
- Serial.print("\r\n");
- W7 l( n6 r+ L, q$ S( l - digitalWrite(2,1);# K$ p& A% ]/ E+ |# O
- Serial.print("IP address : ");8 C! \6 D9 q0 G/ i
- Serial.println(WiFi.localIP());+ T7 q2 o$ S8 {6 B* J8 U' `
- server.on("/", HTTP_GET, [](){0 q& H$ j |* p% F
- server.sendHeader("Connection", "close");, T7 s0 v6 R/ O6 |! R9 v& c5 ?* f: Y
- server.send(200, "text/html", serverIndex);: U) D2 h: f! V1 J2 J9 ?
- });
* t& [- M& I9 a# e$ e+ R/ K9 K - server.on("/update", HTTP_POST, [](){
0 g1 {2 C1 C6 ] - server.sendHeader("Connection", "close");
# x6 j7 O8 Z h6 @# j. [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 M: E a& F; i9 C
- ESP.restart();
2 c/ _+ G! I) L' u( k% ] p8 H3 g - },[](){( Y4 d N! f4 W- E* S. U
- HTTPUpload& upload = server.upload();
) ~% q7 v, y6 S& ]- c% y - if(upload.status == UPLOAD_FILE_START){
# D# G9 ^& r3 e( } - Serial.setDebugOutput(true);" ?. b% ]9 \4 e' @6 @5 s
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 h! F: I1 H6 k! z3 \* Q8 A2 ~7 I - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* w4 y: \; A9 F: d3 P+ [
- if(!Update.begin(maxSketchSpace)){
$ Z% K3 N% k9 ?; d3 E7 K( T - Update.printError(Serial);) z9 B1 r8 Z# J- ~1 y+ ] H% h
- }
: W; \ `2 J# x( n2 D - } else if(upload.status == UPLOAD_FILE_WRITE){
- g; X' M- j/ ?# d1 ] L! A2 U - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ |% w6 N+ N% ^& j - Update.printError(Serial);
" ?) w* o# C) l - }
; q' b( d/ W: O5 ]0 ~+ y - } else if(upload.status == UPLOAD_FILE_END){
6 ?4 @+ }* Q6 f% c* _3 _( p1 R9 W - if(Update.end(true)){. l" r; y/ i: [& `+ [" W, X" b! }+ o
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ _: s3 s/ ?& H8 T/ m1 S0 Z8 E
- } else {
9 S3 G) P+ K. Q2 p3 E - Update.printError(Serial);
6 N6 F9 r1 p1 u& M" ?3 m - }
$ t' E3 ?- P* f4 { - Serial.setDebugOutput(false);. z; {; e$ P! _6 x, y B
- }- |7 l1 d+ M1 `" F
- yield();
/ l+ x" h. H! k0 ^4 {2 l - });6 a$ }4 ~6 d5 m$ A1 G1 ]' T8 q, [
- , O" ~" F6 W# e4 x
- digitalWrite(2,0);2 M w1 k' K$ ]( i1 P, p0 g! c, \- M+ X+ v
- mainAction();, g7 T0 b7 Y, e# k' f: G7 L
- if (digitalRead(0)){9 _' M& m8 m. ~
- ESP.deepSleep(0);! a; n2 Y( `% e
- } else {
$ M7 m5 ]: n& [5 q+ p - server.begin();
& B7 H; x2 z, W0 r+ Y; ^ - }! G# c C) r3 x
- }5 W9 T2 S, t: D
- void loop() {
- q/ b( Q6 v, L4 [- L/ m - server.handleClient();1 f0 p9 O# {1 l& s/ j4 c
- delay(1);: h1 a+ H' ^8 p" {1 w3 z1 F6 f, l
- }$ {; J1 I8 z: M% o
- String doGet(String url){
7 O9 S: X; i7 B. z - if ((WiFiMulti.run() == WL_CONNECTED)) {
( R9 F# r& V/ h X1 z - HTTPClient http;& o: `5 D$ d% m; [/ A
- Serial.println("[HTTP] begin...");
/ r7 F0 `3 H4 V3 @( K - if (url.startsWith("https")) {
5 N# n0 }) H8 U# O4 C( u1 I - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 n+ y h% P3 D% o
- } else {) L! d, x6 R4 D# D' \3 l. F$ I2 U! t
- http.begin(url);
$ S. X2 B; e3 U& y - }
2 F2 ?" [ Z- T! [& g, } - Serial.println("[HTTP] GET...");
$ F- Z& ?; K1 a - int httpCode = http.GET();9 V h/ C/ O- ^. @; o+ \9 S
- if (httpCode > 0) {( {3 h) n; J) u
- Serial.printf("[HTTP] code: %d\n", httpCode);7 `) E" U+ \% ]
- if (httpCode == HTTP_CODE_OK) {
2 N# D- n! `- Q B* r - String payload = http.getString();- s# P9 D f6 b7 z) k
- Serial.println(payload);
3 t9 ~/ Q0 `/ B - Serial.print("\r\n");: n; N }; ^$ r2 {1 @
- return payload;
. H: _$ k5 o6 m* i- i3 i - }, n6 m) @; U6 o" H/ x# e; m
- } else {
8 N; L) I' a9 o9 Q7 d4 V) l - Serial.printf("[HTTP] GET... failed, error: %s\n",
, A% |% n( [& s5 q7 M3 a: N. H - http.errorToString(httpCode).c_str());* Q% d, R6 x$ C; {
- }* X. Z; V$ H: D W3 M
- http.end();: {) _$ B2 z+ [+ `' U
- return "";
/ {' I" n( R* t/ d# m+ d- c5 z, G8 v3 M" G - }
5 F5 P; ? P# D - }
1 h, ]! ^0 O( O- a2 H - void mainAction() {- S. t R8 H8 X7 L, y
- // 发送请求7 q e; q% w' B4 f/ ^, q+ j
- doGet("http://google.cn");
V, }' U# C. d- ? - }
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