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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)* X4 c* Q+ m2 J. S6 R/ h/ h
- #include <ESP8266HTTPClient.h>
* e6 T9 C5 Q3 N6 b/ ?; r - #include <ESP8266WiFi.h>4 K8 W0 c- y1 f, T
- #include <ESP8266WiFiMulti.h>
, q- \: f; Q" F0 [9 \ - #include <ESP8266WebServer.h>
1 k+ W6 Z; |' A( p' O% }1 d - #include <arduino.h>
9 n/ l7 D2 _' v* S - ESP8266WiFiMulti WiFiMulti; r+ V. N+ D+ Q2 p7 w/ g9 o
- ESP8266WebServer server(80);
7 m4 M$ |0 q' Q- W8 B; J' \ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 _) {- D. u& w* f
- ADC_MODE(ADC_VCC);
& T- A0 z% y: L7 V. S - void setup() {
/ J9 X6 T4 p: g- f1 y7 _ - Serial.begin(115200);! j" u8 P6 b6 |) W( u. |& A* F
- Serial.print("\r\n\n");6 B" }. d( f7 { T! c. V9 b5 y# I
- pinMode(2,OUTPUT);: d& A- y- Z, M7 A8 p( E
- // WIFI2 p9 C% b; X$ F) E" S4 w$ O' H
- WiFi.mode(WIFI_STA);8 e$ Q6 P0 Q/ y/ @9 H6 K
- WiFi.hostname("Sparkle");
' f8 a+ e" }3 h; V1 [4 z5 P - WiFiMulti.addAP("wifi ssid", "wifi password");
% p; \3 ^- u6 g - int tryNum = 15;
, A# S0 U7 y1 b( C9 Z - Serial.print("Connect WiFi");$ U9 w' R" [# ~$ R6 S& e
- while (WiFiMulti.run() != WL_CONNECTED) {
9 r4 K" X$ i, y - digitalWrite(2,0);
* W8 {3 X9 F6 z7 r' `+ Y4 o2 q - delay(200);
4 G9 C3 B& o0 U3 a - digitalWrite(2,1);
+ D" E6 ], {8 l+ l; J! z - delay(300);
]) z I$ l, N: ?0 }' S - Serial.print(".");/ H s$ D) ~# Q; K+ A$ A5 m
- tryNum--;5 C' E; m- c* L; Z3 d+ c
- if (tryNum == 0) {$ l4 X1 T2 ]2 l; G
- // 1min
8 A! z( `3 j. c1 w - // ESP.deepSleep(60e6);
6 {, c5 e( Z/ o0 Z/ p, R/ V1 b/ W - ESP.deepSleep(0);
" M7 z8 }' A; d) h% K - }# ]0 m+ W) Z6 z3 g: P L2 Q6 I, j
- }, i" o; H) z: t# M# U' ?
- Serial.print("\r\n");6 j% Q* T% i" Y+ w* i
- digitalWrite(2,1);& M5 y, j6 q* P# p! t
- Serial.print("IP address : ");
) `% R* _2 B z2 }- u9 u - Serial.println(WiFi.localIP());
7 K# `- u. ~) C1 ]* p( H+ c - server.on("/", HTTP_GET, [](){! n% ]6 Y5 o$ H. L
- server.sendHeader("Connection", "close");( X: Z S+ h1 J& e- z
- server.send(200, "text/html", serverIndex);
- W3 P, Q8 y. p4 M5 y% Z - });
: ^5 ]! C% p% o+ ~) U - server.on("/update", HTTP_POST, [](){
& Q. U; e4 J W: _ - server.sendHeader("Connection", "close");" v6 g) E2 j9 f2 K' Q- z, ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# ]/ C- f$ u9 x* O0 O2 _9 M
- ESP.restart();$ [$ x( F' x4 F5 i+ O
- },[](){
5 F; |/ i# _# L4 M/ {1 s& a. @ - HTTPUpload& upload = server.upload();# B0 _) F4 T" _) d
- if(upload.status == UPLOAD_FILE_START){
% Q+ z' M' j) t+ w; |/ P* t - Serial.setDebugOutput(true);
6 Y# e( J+ M" U! F - Serial.printf("Update: %s\n", upload.filename.c_str());3 N4 o* K3 a$ p/ o
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ l" l% k- e; [, W' r$ ^8 }
- if(!Update.begin(maxSketchSpace)){1 a/ \' s; B( e, R) i0 Q7 D
- Update.printError(Serial);2 b+ t+ C8 x. ^! h
- }1 ?, J& |" ~7 r b
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 v: C& V, N0 I* ?# B - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
- c1 j& d4 W( {8 m( w$ Q, [ - Update.printError(Serial);
: B) \9 G. O4 J6 P2 g) ]- ^6 C - }
; L" a: W) \( z$ { - } else if(upload.status == UPLOAD_FILE_END){. O& \* Q" [/ h! K4 @2 T7 |
- if(Update.end(true)){* b8 | ~9 K* F
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* _% v2 ^( C3 o% U% E - } else {7 v* s |" K$ x) B5 S* ]
- Update.printError(Serial);/ V; `+ Y3 d3 Q5 c2 s& r: R
- }! D6 g/ I! C* q% Z- n/ T) R( F4 e
- Serial.setDebugOutput(false);2 @/ r* Z" |% A6 d* P% g# b; K6 x
- }% j G3 n, b' E% S6 ~+ w2 D
- yield();
. ]0 W* W$ L5 A% s8 X( I) u4 M - });
. U7 `( Z3 w: P" q - 4 y/ P' ~3 f6 R
- digitalWrite(2,0);- _) I8 z2 Y4 l! B
- mainAction();
" \9 N: R @ i$ ^& Q - if (digitalRead(0)){
1 K& J* D( e6 ^) U - ESP.deepSleep(0);; j$ q4 X% b; g3 T7 v$ @4 x; B
- } else {
: ?8 t# v5 j0 Q - server.begin();7 C I7 L- Y/ m0 Q \
- }+ D7 J! `, n$ V# w- d) B" _4 c+ ^
- }5 X- {) S" u- a( i7 \
- void loop() {! z/ t8 d, k+ p( @$ R5 P: R. \9 I
- server.handleClient();/ P) u1 g+ a! B* d: w
- delay(1);* n8 P+ r7 |8 Y' Y
- }
' L. S+ _6 o& C$ r" f6 A- a - String doGet(String url){/ h! H' i4 s" E- Y' e
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 W: h/ |0 W t- C
- HTTPClient http;0 b/ y3 m" h# F
- Serial.println("[HTTP] begin...");9 r$ ~, U2 @$ v; V
- if (url.startsWith("https")) {
2 W6 H5 Z/ ]2 z# h - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ D1 g/ J$ a# R+ R( ~
- } else {
- F# I0 u1 c+ M5 m - http.begin(url);
- P4 P F- J& {& j& h - }
+ d) Z2 U/ Z. \* T - Serial.println("[HTTP] GET...");6 w* q% ~2 r) x2 i
- int httpCode = http.GET();. X& r" m2 Q3 K5 Z7 R
- if (httpCode > 0) {
* V% ?) x! T5 b+ }6 z - Serial.printf("[HTTP] code: %d\n", httpCode);
M& ?8 l. x( Q, s - if (httpCode == HTTP_CODE_OK) {
+ t& G I/ [% [" D* L! f$ M - String payload = http.getString();
& m% i: W* d7 v# r. z/ v. E2 j# b - Serial.println(payload);" y2 s7 Z5 x4 [: p" b8 S
- Serial.print("\r\n");) x: o+ G: y, o5 ~4 E& ^
- return payload;
4 l; t, V3 `' H. Y) i9 V - }9 V/ _) c" H0 k3 u: G8 v* q* F
- } else {+ d' B( t2 w( b2 D! L
- Serial.printf("[HTTP] GET... failed, error: %s\n",
. o& }7 H0 r# Z4 s - http.errorToString(httpCode).c_str());2 d7 Y& R1 p! S- [+ v
- }: y ~' f. O+ P2 f8 e, b& P
- http.end();
$ _4 M! W, ~. ^, P. v2 C5 y4 _ - return "";8 q& }% {$ I8 S/ ^8 ?
- }
- e. `8 [' F! K- g, R3 M. ^ - }
, g: B+ [0 w: k) _ - void mainAction() {/ t# c) E$ j A+ y4 G* p
- // 发送请求
' S2 g" e2 M/ b; f. }7 [- r3 U# C - doGet("http://google.cn");/ f" J T- A1 _" @7 O
- }
( v1 w2 m! d+ w+ z+ t
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