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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 O- \3 l3 w# f1 r- l5 ?- #include <ESP8266HTTPClient.h>
: r6 M; e$ e) x( j - #include <ESP8266WiFi.h>1 g+ I/ A5 U6 C/ V2 m$ t
- #include <ESP8266WiFiMulti.h>
- e4 m9 O7 W8 A2 R# V p0 i+ Q* f - #include <ESP8266WebServer.h>$ N( H' Y8 C' f3 s" u0 K6 c
- #include <arduino.h>
/ j, o' a# n5 C7 c3 p+ h5 G L - ESP8266WiFiMulti WiFiMulti;
. x$ V5 Y$ R: h* e$ d; N, j - ESP8266WebServer server(80); T" }8 a$ I( p
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
d1 c0 G1 \5 r$ I. @. |/ X- N - ADC_MODE(ADC_VCC);, m* S" l9 D) p! d1 ^5 q
- void setup() {
9 h" O/ F l; ~" k. v- A6 H; @ - Serial.begin(115200);
8 K( p. w: A4 y - Serial.print("\r\n\n");
- ?! e$ z4 L* l - pinMode(2,OUTPUT);# z4 o$ C# a; `# x. J# h2 y
- // WIFI
3 z8 n8 K: p. K6 |! r' E( l. h; m6 p0 L - WiFi.mode(WIFI_STA);
& _2 |- S/ ?' y+ \2 _) _, g - WiFi.hostname("Sparkle");" K2 v3 M4 v$ V$ W; o! ^% F
- WiFiMulti.addAP("wifi ssid", "wifi password");
, e) k, f* S' _* ~ - int tryNum = 15;
& q$ Y8 N2 B& x% I - Serial.print("Connect WiFi");
' T/ P$ J! ^! j; {$ Q - while (WiFiMulti.run() != WL_CONNECTED) {0 S2 E( a/ Z d+ p! |! `
- digitalWrite(2,0);3 V* ^3 }# T& e8 p+ }7 y! f
- delay(200);
/ N l3 y' H! ~0 x2 n - digitalWrite(2,1);
/ Q; {. w5 Y$ H7 i) R - delay(300);- c5 Q+ }( \* ?5 `( l
- Serial.print(".");
; w/ i7 I$ f9 n! E" [ - tryNum--;- ~) x/ K0 j# P3 n
- if (tryNum == 0) {
6 |) @$ M) n" h( V# q! ^ - // 1min
( |3 I1 I- J8 N5 J - // ESP.deepSleep(60e6);8 W. d1 Y+ N n& M+ x
- ESP.deepSleep(0);
, V" a% w. k7 U8 R6 o - }. E0 d/ j+ V% a2 {) [3 O+ b: n4 ]
- }! p; w5 n+ M4 ^$ k1 {
- Serial.print("\r\n");
, C A4 S& H7 |. U6 G* C - digitalWrite(2,1);; R: `* [7 m' W3 A
- Serial.print("IP address : ");4 ?/ @# T) E7 V7 d, o
- Serial.println(WiFi.localIP());: S1 Z& q; F: ^1 }
- server.on("/", HTTP_GET, [](){! `9 m9 I. y1 P
- server.sendHeader("Connection", "close");
5 W( K1 Q1 A7 ~7 E - server.send(200, "text/html", serverIndex);
$ ~* A4 P! n5 l+ q6 w7 e3 ?( p) c - });# @4 B6 @, E8 g- O7 f
- server.on("/update", HTTP_POST, [](){
8 q0 B5 z0 ?& K0 F0 Y/ k3 L/ g - server.sendHeader("Connection", "close");
* ~1 _" y/ K G5 B' m1 p" H* p1 X2 e5 ~# C' B - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ D4 F% T& f/ Y7 N; g5 l
- ESP.restart();
. c& \2 Y- w+ W; d, f h& r; t- P9 r - },[](){
5 S' I$ \3 Z! s1 S) i7 a+ @ Y - HTTPUpload& upload = server.upload();) c' y& b) }+ x) n
- if(upload.status == UPLOAD_FILE_START){) K: q0 N! j! \, m3 f; b
- Serial.setDebugOutput(true);- u, s0 U) H# d3 T
- Serial.printf("Update: %s\n", upload.filename.c_str());9 a; ]' I z" w! o. e3 r
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;2 P! ^+ j1 H3 ? R. F1 ^
- if(!Update.begin(maxSketchSpace)){! _! C( a, L7 J/ @1 d
- Update.printError(Serial);
7 |, C1 ^3 N) @! `2 I, d - }
8 @3 I5 ?1 H7 s2 f7 k* v - } else if(upload.status == UPLOAD_FILE_WRITE){
" n M# x% A! Y' y) U - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ B/ T& T" a4 h1 s* o- L4 D" A - Update.printError(Serial);
! y5 f* ?, \' [2 n7 b) h, t - }
; h* ^! M$ [+ J- }5 Q - } else if(upload.status == UPLOAD_FILE_END){* j" y0 i7 i% a5 ?# ?
- if(Update.end(true)){1 H" E6 K% \$ }: h$ S
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% w& k, H+ x% ^! G' \ - } else {
8 }) D! u& x" I! R& J - Update.printError(Serial);
8 e3 b1 Z: F6 f; q5 O% K - }& y& g: X0 E/ I
- Serial.setDebugOutput(false);0 N2 E- y' \8 T% t+ V! G8 Y4 ~
- }
2 `& m. N- j. A" O5 W0 H3 \9 N - yield();# ]/ W/ g( C: d: H
- });4 m' h3 Z& N& m( F2 v6 }3 b. ^! }% g
- 6 z4 g3 q! a7 d- k1 V, P
- digitalWrite(2,0);6 z& ?# {3 ^% P0 J) o
- mainAction();
1 i$ u& t( @! |9 L0 n1 \ {% D - if (digitalRead(0)){
9 _8 A2 \- Q1 ? - ESP.deepSleep(0);8 N% p( v0 B4 E. _$ E4 k
- } else {' {2 F$ x# m; h- p" e
- server.begin();( [+ H0 C" @- B3 d
- }
5 o3 ?1 p+ h' {( l: E! Y# w - }1 S3 ^, i/ H `) c
- void loop() {/ K2 r5 h9 |& d. i0 J
- server.handleClient();
7 J" H$ x D! j8 I, g0 ] - delay(1);9 h# h, X/ q2 C* n1 Y: q" K. ^
- }& M4 L! T! E9 E0 |3 `- i% Z1 W
- String doGet(String url){' E9 O! E1 n% u
- if ((WiFiMulti.run() == WL_CONNECTED)) {& }( O* p9 A) C
- HTTPClient http;) c, ^* q0 X! a
- Serial.println("[HTTP] begin...");
* [! {; m' c. n, q j6 \4 M7 @ - if (url.startsWith("https")) {
9 J( c, k6 e( k3 s- n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ k8 W' W4 Y2 y. a - } else {$ p' J2 M( W! ]" u, p' E" @
- http.begin(url);
# e4 O8 t+ Y+ x0 j - }9 k5 v8 h ~" p! A7 ] i
- Serial.println("[HTTP] GET...");
+ [* I" h: e1 A& P' B6 P8 {% G( h$ \ - int httpCode = http.GET();2 b7 ?4 V- Z- ^ P- ]1 I' z2 F
- if (httpCode > 0) {
; O1 O6 i5 ~* b: J R - Serial.printf("[HTTP] code: %d\n", httpCode);2 ^9 U/ p; _( d# H4 W
- if (httpCode == HTTP_CODE_OK) {' N$ ^2 g8 ^. A8 A) T
- String payload = http.getString();) F+ [, `+ ?3 z& o, v3 E% e# G
- Serial.println(payload);& s7 \6 @2 }7 \
- Serial.print("\r\n");
2 G# S" ^ X: h T$ l# r - return payload;
7 e: `/ a$ r% V3 w' A - }
1 b6 t, h0 q2 K& Z, T" Y! [ - } else {
! f5 }" H! F2 E - Serial.printf("[HTTP] GET... failed, error: %s\n",
) B+ d1 j8 c& p* i: {$ u - http.errorToString(httpCode).c_str());
: F1 _* v6 _* N) {1 O% l - }/ Z2 t" [" W" ]" J
- http.end();
" b+ S" P8 `, ~7 Z6 u! c - return "";. R5 C, ]6 T7 B; A+ e' G0 B
- }
: w. e2 E" o4 u- l' H1 S - }
7 A' t3 Y/ j9 f3 @ - void mainAction() {
& ?! [. Q2 d2 J3 G( Q3 ]0 M& d' q9 w - // 发送请求
- n d$ T2 |1 I) n" } - doGet("http://google.cn");9 m! B9 D- G9 @$ C
- }
3 @' H2 b! a/ O
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