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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)
2 j% C- e3 q X: g, F- #include <ESP8266HTTPClient.h>( H; ?$ t- q; ]
- #include <ESP8266WiFi.h>
2 w' d) t- @# Z/ h4 L( ~ - #include <ESP8266WiFiMulti.h>
) l7 ` D: Z; |- r3 U4 O2 [( M5 ]6 B - #include <ESP8266WebServer.h>% P9 E. c% n! ~' O: G5 L
- #include <arduino.h>( n" @# ?- N* ^! w
- ESP8266WiFiMulti WiFiMulti;4 L6 i* Z+ G/ c$ p3 B/ O6 Y
- ESP8266WebServer server(80);' S/ [& L7 M* p* l' Z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 h1 }) B7 o) }* {9 I" C, |' z8 S
- ADC_MODE(ADC_VCC);
, \- H) _4 o) L6 |# u ]2 W7 [" v - void setup() {' o/ M; C/ r _, `2 ^
- Serial.begin(115200);; ?5 t7 I+ `( _% [9 \
- Serial.print("\r\n\n");
: O7 }& a; B) V: W. D9 y* Y, A - pinMode(2,OUTPUT);2 a2 E6 u m) x" `$ G
- // WIFI. p1 V, Z- y1 u- e y
- WiFi.mode(WIFI_STA);' X- l5 o5 P) _
- WiFi.hostname("Sparkle");+ i, \5 g8 T/ }. D0 |- A
- WiFiMulti.addAP("wifi ssid", "wifi password");
# N9 D$ R. c: j! P9 Q/ _/ a! @ - int tryNum = 15;
: {) c* C3 n2 [ m* g7 C: o3 ~' h3 e - Serial.print("Connect WiFi");
! R3 o* \7 N1 E7 K1 Q - while (WiFiMulti.run() != WL_CONNECTED) {
1 E! C, J/ a9 f' g/ i - digitalWrite(2,0);
/ j+ ]: V% K% s# L - delay(200);
- a( j$ y. k5 x- y* ?6 u0 W - digitalWrite(2,1);8 [9 F+ n+ e; |, e9 g
- delay(300);1 l0 t, Y: i: @1 `
- Serial.print(".");% y4 X) K' U4 y. q8 b
- tryNum--;2 S, }$ ?+ u/ k: f5 L$ o! ^ O# V
- if (tryNum == 0) {
( W- i d4 v q. ~. _: U! [5 a) A - // 1min
, S4 f3 J5 `5 | - // ESP.deepSleep(60e6);0 a/ e6 n/ e! R8 N: e+ G4 B6 ]" \
- ESP.deepSleep(0);
% O% K0 Q$ [' @5 K, U2 q1 \3 B' R: v - }+ f% ^+ U7 K( J& C, Q2 @/ {
- }$ l2 _( b9 q% Y
- Serial.print("\r\n");
- F; S! a# B& m/ C3 f - digitalWrite(2,1);
7 [, o2 ^ O) H - Serial.print("IP address : ");
6 E; ?7 {* L0 @2 A - Serial.println(WiFi.localIP());
( S8 |0 H) t1 C, \9 ?4 Q - server.on("/", HTTP_GET, [](){/ R" q! E# ]5 G6 d# b/ S
- server.sendHeader("Connection", "close");
3 N' b6 L! X7 S3 G# x8 Q$ w - server.send(200, "text/html", serverIndex); [7 a9 s4 Q ^! J' \
- });
9 t' r- S: s9 B: A! }# ? - server.on("/update", HTTP_POST, [](){
& H1 `. ^; S# h: ~ - server.sendHeader("Connection", "close");
' J, n7 o' {% i& g5 B; H - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 m: x: \/ H0 g5 L4 s) J7 w) @$ P+ ? - ESP.restart();0 C1 P7 b) H E l
- },[](){4 [* U# z; E$ ], o( X
- HTTPUpload& upload = server.upload();0 c5 U/ r. j3 T6 ?0 E! |- t: d
- if(upload.status == UPLOAD_FILE_START){
+ u6 f% ? C& `$ p' ~! ^) \ - Serial.setDebugOutput(true);
) v: K4 d2 E2 g d9 s - Serial.printf("Update: %s\n", upload.filename.c_str());! Z) O( p/ C. L" e
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( M; S- [% X/ Y0 H! L: @0 @/ \' c- ~5 ~
- if(!Update.begin(maxSketchSpace)){
' M+ ~4 P1 X5 F; F - Update.printError(Serial);
9 R5 {/ h" V" [ - }
; E0 h' b3 c$ k4 R: d - } else if(upload.status == UPLOAD_FILE_WRITE){
7 Q3 L i3 c( V+ P( | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 ?8 c, y1 d+ X, I - Update.printError(Serial);! |. `* p! [0 m9 z( z
- }& K& R/ } v1 _, J" g' }- |8 H
- } else if(upload.status == UPLOAD_FILE_END){' ^ O+ s( v" o# ?3 y; P, B
- if(Update.end(true)){
( v" W4 [; k" K - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! A- Q( g% \% p) ~" n( E P - } else {6 y# \6 G0 t3 ]* v7 P
- Update.printError(Serial);- g- {: f6 ]6 T) d( v7 b
- }6 v1 y, i" g* Z( F1 _# V& h7 b9 \
- Serial.setDebugOutput(false);: E0 L8 W! k: i, t" v4 A# K* @9 d
- }7 ~9 i5 k$ n, }7 k/ t+ B6 f' [
- yield();, g; N) Q% {0 ^+ x" ^: A3 q
- });
' y- h8 u3 O, B' Z+ S6 [ -
: r; E$ }/ o! b2 Y+ ~ - digitalWrite(2,0); P }- k) H4 M1 J0 i' L/ I
- mainAction();
7 n; _; h# N3 L7 s - if (digitalRead(0)){
]* P* a( r8 u8 A) i) l - ESP.deepSleep(0);
8 z, I) n/ }5 x3 l6 t4 z - } else {* y+ p W/ h/ H
- server.begin();
' o$ F7 l5 ~; s. q% Y& ] - }
" L5 T2 v5 Y6 B/ s3 e: _ - }- P- s9 ~2 d- X7 Q$ ?& J: d+ h8 w
- void loop() {
- L1 Z" ?3 z8 d# Y: i - server.handleClient();
/ e2 i S6 z% I' p - delay(1);/ W' [; k( ]+ ~1 K
- }6 X3 Q5 h6 r. H; ~4 R7 a
- String doGet(String url){
% i# R) f2 l' _/ I# |/ ^ - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ P% J( S# v5 e" O( r4 B - HTTPClient http;* C+ |4 {; y+ p. R' c8 s' M* J6 }7 ?/ o9 z, @
- Serial.println("[HTTP] begin...");
2 f$ c9 z: @9 L - if (url.startsWith("https")) {- _) }. u/ [1 u. a- 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");6 J' I! H0 \$ ]# k# c0 A
- } else {9 V. U6 |& w+ w* w- F
- http.begin(url);- h& a6 h* U1 N4 [3 X# U( e) |5 U
- }9 s. E) g" j# U' O
- Serial.println("[HTTP] GET...");
# W2 t/ i( _1 d% k4 k - int httpCode = http.GET();
+ k4 x6 ?2 ~. x& r - if (httpCode > 0) {3 U) C+ D5 X% \$ k) `7 d8 f5 q% p
- Serial.printf("[HTTP] code: %d\n", httpCode);8 G" B: b! e+ }9 i. n/ h/ U
- if (httpCode == HTTP_CODE_OK) {
4 ]+ P0 x5 o" L3 k& q. x2 }9 k - String payload = http.getString();
1 @* B2 z: ?! t) O. _& k - Serial.println(payload);0 j& T0 d; v0 {6 [
- Serial.print("\r\n");
) n* y$ M/ i" c" p% y& \6 z - return payload;
; Q9 }' L# J" y6 i6 ^ - }4 q* {0 ?/ X* ?( T9 U) K. `
- } else {5 k& u, |4 [: q# v0 O: n
- Serial.printf("[HTTP] GET... failed, error: %s\n", E; a# y& K5 m0 j' c+ s b
- http.errorToString(httpCode).c_str());
6 R& G; _4 ]# ?7 k, {2 U% z" B - }
* [$ d/ g# Q8 c5 @% {" L8 d8 |; M$ U - http.end();
1 x: v0 M6 {! A7 |9 R. P- F9 d - return "";) E4 F, z% C, y0 w
- }8 \* H) p4 d, _% |8 f
- }
8 K! @ y& U5 z/ }# [& ] - void mainAction() {
9 A# s* `$ s$ b% E. P9 ]; W - // 发送请求0 s# e+ S) e x) [- n
- doGet("http://google.cn");
+ d& ?* a/ |) N3 J6 [* G7 T - }
& ]0 ?8 X% G! n
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