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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)* n+ _( e/ b4 w( K D/ a" ^
- #include <ESP8266HTTPClient.h>% e1 x3 g3 Q' Z$ s
- #include <ESP8266WiFi.h>' o1 w' ?! p/ D$ c+ u% k9 @
- #include <ESP8266WiFiMulti.h>
}" O& K+ l; h& E9 `/ Q - #include <ESP8266WebServer.h>1 D2 g. m4 c7 m- M+ s; T
- #include <arduino.h>* c6 G6 H: h/ }4 N/ T. \6 s
- ESP8266WiFiMulti WiFiMulti;
8 K6 {" Q+ |; h, y# o! ^ - ESP8266WebServer server(80);
- _! ^5 u! l/ H1 ` - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 I0 s6 A9 W1 i4 |! P4 o6 o9 _) ?# E - ADC_MODE(ADC_VCC);
2 t# q o9 j# @- ?* F - void setup() {% H4 P+ X1 K3 n2 D% ?: ?
- Serial.begin(115200);
! h9 T& C( |8 ? - Serial.print("\r\n\n");
; }% N# ~8 ~+ d$ G2 q/ G - pinMode(2,OUTPUT);' M- {; n2 R ^" S' w
- // WIFI0 A: }7 J' T9 N5 q+ }
- WiFi.mode(WIFI_STA);$ h1 U7 U/ u9 M5 x5 w
- WiFi.hostname("Sparkle");: k9 t# Y1 f7 G6 o F: `/ m
- WiFiMulti.addAP("wifi ssid", "wifi password");9 m- \, B; w1 o2 \9 S4 e% v
- int tryNum = 15;" I+ A8 L3 L) q; w; `, M
- Serial.print("Connect WiFi");
. P; y Q n: v4 `) ~& h) Y, \ - while (WiFiMulti.run() != WL_CONNECTED) {- H: e( S3 x* L& }
- digitalWrite(2,0);
$ F' i2 O2 v( {* f - delay(200);6 S* k; X8 U% {5 N0 E: x
- digitalWrite(2,1); `( F- A% b2 q/ }$ P! I. w1 m z2 X
- delay(300);
" e, k6 z7 T) M6 l* E/ k - Serial.print(".");
/ v z, ` e' f - tryNum--;. p2 H( b9 D' A, z0 \. w6 |$ n
- if (tryNum == 0) {
6 k# i) u8 O) g' D% {" o2 s - // 1min
0 _2 d9 U: Q7 K' } - // ESP.deepSleep(60e6);
' n- E1 ^' V) p! b) [$ h - ESP.deepSleep(0);
9 m, R) \0 k/ i. O6 f: V: R - }% y4 M% y5 @0 |& @
- }
. X4 j+ P! E& ` - Serial.print("\r\n");9 u- n" E o6 G: L8 b
- digitalWrite(2,1);
% e) H8 x5 }3 K q6 |. d3 L; k - Serial.print("IP address : ");
K- t6 r7 l5 o* @ - Serial.println(WiFi.localIP());
. k" D0 g X0 E; ~ - server.on("/", HTTP_GET, [](){2 Q( c! K& w- \
- server.sendHeader("Connection", "close");. L: I0 f1 T5 X0 j2 b; k& t
- server.send(200, "text/html", serverIndex);
$ [ H+ y2 z- e# N( p) Q8 h - });
/ g5 L6 i2 o) @% |# l }( i9 d8 N - server.on("/update", HTTP_POST, [](){
4 V0 C/ i# z; @6 p! s+ o - server.sendHeader("Connection", "close");
- c) V; L- P$ m; \) J" b" e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 `$ Z6 J. G8 `
- ESP.restart();
/ G; d" O0 `: [% W+ s - },[](){
; a, @% F$ P) t) Q' U - HTTPUpload& upload = server.upload();) d2 O) o' Z0 k' D* g
- if(upload.status == UPLOAD_FILE_START){# |% F9 x) n; d" E) {
- Serial.setDebugOutput(true);
; i: d8 l) t% X$ Z* D - Serial.printf("Update: %s\n", upload.filename.c_str());
/ M2 Y5 R( M5 w/ K/ u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 J) ]/ a6 ~) X& d - if(!Update.begin(maxSketchSpace)){
- t$ v8 b X( r8 m - Update.printError(Serial);" @' |2 N7 T$ \& t5 I
- }
* n) `6 p5 N$ t% F) n+ I - } else if(upload.status == UPLOAD_FILE_WRITE){: v1 d* R0 ?% @7 e
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 [- x: E; @$ r }- R1 K
- Update.printError(Serial);; a; K' }3 V! p1 y4 s$ q
- }
! A9 R! |0 J2 | - } else if(upload.status == UPLOAD_FILE_END){3 ^, Z; x8 V" n3 s$ [
- if(Update.end(true)){
2 A9 |8 q! z5 G3 ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 ]! u/ e1 z( q9 E6 f& r
- } else {
/ p" P. d9 I, C! I7 W - Update.printError(Serial);4 x. W) |/ k; b8 e5 J3 ]9 E* G
- }
1 j; z7 ?1 _$ T8 b: D6 n - Serial.setDebugOutput(false);9 Z- B. G9 e( Z
- }2 l2 F( B) P& Z; z+ i9 F
- yield();( H0 X* F/ X3 C" f! C2 r9 [
- });+ G' p3 j1 t& |7 Y0 j5 ]+ i( g4 U, }0 r
- # ~" }3 V$ K% D
- digitalWrite(2,0);
0 p1 ]! a# |( R& o/ C - mainAction();9 Z1 e: A9 |" c
- if (digitalRead(0)){4 I' c4 @ P- C1 G2 S, ^
- ESP.deepSleep(0);2 N- t9 P$ ]0 _0 n/ x; `; H
- } else {
9 f3 S- F/ G. H8 M1 a - server.begin();
k4 T0 k n, D; h: ?% V/ v - }+ ~. i" ?% F" O" E$ l
- }# f/ T7 }" r! j1 |, W/ `5 {
- void loop() {
& p) g" N r0 h! ~ - server.handleClient();
& `4 |# ?% D0 p$ z9 P7 K - delay(1);7 j8 @3 R* n- O
- }
% Z" ]( M6 P+ g0 e- K* I; c' N5 X - String doGet(String url){
( I* g2 s8 j3 i& ^ - if ((WiFiMulti.run() == WL_CONNECTED)) {
% z: `- h$ @% L+ w - HTTPClient http;# n: F1 d7 N* K
- Serial.println("[HTTP] begin...");( C- z5 a' |: {9 c
- if (url.startsWith("https")) {
2 U( t" ~* P) [! h - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
* d- J2 ^6 ]( u! q - } else {; ]- B) E/ V, H; T! s7 V( N2 k* Z
- http.begin(url);
5 G1 X7 @0 S' d) Y' { - }
3 Z& i& s% e" h; @* Y9 v - Serial.println("[HTTP] GET...");, W- ?' Y5 H- y
- int httpCode = http.GET();
" J1 y) f& l$ A% b - if (httpCode > 0) {& R2 p* w* u) b* H% `
- Serial.printf("[HTTP] code: %d\n", httpCode);+ A/ q+ T4 \0 I- k' S3 L2 a7 D
- if (httpCode == HTTP_CODE_OK) {
) a7 c8 M4 X- `/ k3 @6 m( F; ?2 t' h) f" ? - String payload = http.getString();
5 |& ?& j* p' a' g7 g! j1 K+ V - Serial.println(payload);5 ^5 B: [& R/ q
- Serial.print("\r\n");9 W! W. S, O; @, q2 _# z. D* J
- return payload;' `& s% K" K! g0 K
- }6 t* ?7 |& ?( m5 M9 W: z
- } else {
' N4 U' @# m0 q1 p - Serial.printf("[HTTP] GET... failed, error: %s\n",
: C3 o/ l( ]8 O, t- b - http.errorToString(httpCode).c_str());1 O' q& f& l' ?
- }
7 m4 \0 y% Y, i1 @ - http.end();2 n# U# X3 h& d4 [7 k3 r% Y
- return "";2 `" `; O3 o5 v: t I. U
- }
, ~$ P$ h, g' n0 u. O: K' m- X4 c, [ - }
0 w5 q- U2 {3 g; P - void mainAction() {- l! V5 O1 J# r4 [" o/ l
- // 发送请求
$ I7 ^0 ` L* z8 ~6 Y - doGet("http://google.cn");, c m v4 _4 C3 Z- u' w+ U% g0 N
- }
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