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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)
" q7 G' a! P; |# g4 n- S- #include <ESP8266HTTPClient.h>: {8 |0 z9 `3 q
- #include <ESP8266WiFi.h>4 l' C$ {2 ?" l; q2 c* E* U/ ]; i' j/ I
- #include <ESP8266WiFiMulti.h>
* r; a, l1 e3 b! s5 U9 Z- d+ w. s - #include <ESP8266WebServer.h>
: z. P& i0 k3 [3 n% a- r# W - #include <arduino.h>
) r' D: Y! U/ M% N6 a, z3 N* _: P - ESP8266WiFiMulti WiFiMulti;
R. J7 \7 q- m9 H! T* [ - ESP8266WebServer server(80);
- J7 i, U4 G. o4 v; z - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! s. ]3 n. \. x8 F0 w" u8 x: x7 v - ADC_MODE(ADC_VCC);
, a) ^4 m! X3 g' w - void setup() {, l' g; D7 M& Y0 I! P7 r
- Serial.begin(115200);
) Y3 |! X* \; C0 D - Serial.print("\r\n\n");
/ Y6 ^. w* d6 h& K5 H( R - pinMode(2,OUTPUT);" R d6 J9 d9 p @
- // WIFI2 m% O9 n, c: \' p
- WiFi.mode(WIFI_STA);1 A* N0 \# ?+ c0 f+ y
- WiFi.hostname("Sparkle");
: ?0 @6 r% A$ ~0 g4 i, f0 _/ E - WiFiMulti.addAP("wifi ssid", "wifi password");5 j( {/ G: b4 F# f: K8 A
- int tryNum = 15;
0 }' _8 S. k& u - Serial.print("Connect WiFi");
$ x, ]- _; U3 R - while (WiFiMulti.run() != WL_CONNECTED) {, ~. H y8 F/ C; Z4 G
- digitalWrite(2,0);: S5 K! L) N8 q- W- J- W* s$ H
- delay(200);
( K" o; l- `. v' K( |: i6 k8 Y - digitalWrite(2,1);
+ o+ B! P* W6 `* j1 {0 s4 y# K( { - delay(300);
" ?0 F9 A5 x+ _. {$ P% i* } - Serial.print(".");
2 N/ R, _" }" _6 C - tryNum--;
$ Q4 y: m+ R, L - if (tryNum == 0) {
! g# R9 S1 W: S; }: ` I - // 1min
# G* a( F% Q! F* P; ]# F4 \ - // ESP.deepSleep(60e6);2 U% ~0 N4 l4 ^/ [2 r1 r+ s
- ESP.deepSleep(0);2 e1 x" D4 k8 D" o" v+ c- U
- }
; l% U: p- c. b7 e! P- ~9 _ - }
- V0 \6 s) E; T9 I9 A0 Y3 D; S, M% } - Serial.print("\r\n");
: R2 S w: I6 b3 K! f - digitalWrite(2,1);$ Q1 ^/ b: Y& R& A1 p& F/ _5 [
- Serial.print("IP address : ");$ N1 R' x- m) N
- Serial.println(WiFi.localIP());3 F3 {9 |) c" C8 {9 [+ T$ M
- server.on("/", HTTP_GET, [](){) v2 x( k( k5 I% N
- server.sendHeader("Connection", "close");6 V1 A) H2 T5 S" S' W& Q
- server.send(200, "text/html", serverIndex);
8 |; x/ w: P4 F- e6 h$ s - });8 F& Y, i9 H9 o$ x( ?9 E0 o) y8 V
- server.on("/update", HTTP_POST, [](){) Q. A: s; p" y: \) S2 L9 R7 i
- server.sendHeader("Connection", "close");- B" c- F0 Z2 Q/ a0 x
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ x8 J1 [, o; `2 l! [( I2 A - ESP.restart();- @! t$ a! E' w' h& l) Q
- },[](){
/ k( P& P$ U# Z' a - HTTPUpload& upload = server.upload();
0 |0 |1 U6 v& t" l. Q% r9 f% t+ f - if(upload.status == UPLOAD_FILE_START){
! w$ U2 X+ q+ S/ o, q. Z+ H - Serial.setDebugOutput(true);" ?# G' ]* r& t8 V v: n% |
- Serial.printf("Update: %s\n", upload.filename.c_str());1 x/ }. O" B4 C0 H! f, ~
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 Q2 d* @& s/ K
- if(!Update.begin(maxSketchSpace)){
' B" ^ ?, K* x3 w" g# x: f* h - Update.printError(Serial);
; x p0 {9 Z3 \8 M - }
7 r3 l: A% {' ^. U) r - } else if(upload.status == UPLOAD_FILE_WRITE){
' E( v, }: P8 T2 Y4 P Q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ Y& U" O$ x; j3 s( B! H* P; P
- Update.printError(Serial);
! O" Y" Q4 j8 b9 B6 b( t - }
$ o' p, |' w r- s - } else if(upload.status == UPLOAD_FILE_END){
% A' Z, N# g/ J) j6 J8 j9 Y - if(Update.end(true)){* p5 O- o( F i
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 U& z. ~& b! ?1 }2 e, h+ M- D" \- | - } else {
! C# y, ]2 @6 i3 x - Update.printError(Serial);1 m9 l7 {" t3 [" n
- }
* |+ V9 l v$ w" a ]0 @' o) X8 y - Serial.setDebugOutput(false);
3 R1 Y! I2 _ b$ {* D" L }# V4 } - }
: h) _% h' m5 J - yield();- l) m& M$ _3 s8 q$ _0 b
- });
4 z% [. N7 O* P x, K$ X x -
5 ^# c& b9 i$ \7 O9 { - digitalWrite(2,0);
9 c* P" R" h2 W, }- l. z" m% P - mainAction();
' k8 O) v& ^! G - if (digitalRead(0)){
; w* w7 c' T7 a# w - ESP.deepSleep(0);
9 ]0 A- R. F, [ - } else {
, b' z [/ b. F' _0 L - server.begin();5 {1 X5 i3 n# b8 X, p3 H
- }7 C' |4 W `) X# I q! J9 D
- }/ b5 l& ^9 H. K3 r% B2 S0 C: j, X
- void loop() {
& l" o# d0 O: Q! V* E# k: R - server.handleClient();1 X: Z5 [3 q# s; L5 |% Y
- delay(1);: z4 m+ [+ l! k. k. F% l- L. N
- }5 ~- c/ d k8 g# d7 o+ K: Q' b- N- x. _
- String doGet(String url){! p) `& J3 N7 @5 z" ^
- if ((WiFiMulti.run() == WL_CONNECTED)) {/ y, C y/ ?" P+ S0 R' c
- HTTPClient http;
4 h9 D. b$ g- x/ z& ~- i" e3 Z" M - Serial.println("[HTTP] begin...");6 p( B( e1 ~" s5 N7 k
- if (url.startsWith("https")) {
; f# f+ O5 Y0 a A+ }2 x - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 ?1 u+ s4 m. @# H$ U - } else {7 u7 D9 H% n) _6 \1 G" y
- http.begin(url);9 \) c+ O- i% D& U+ C0 x" U+ \
- }! v/ M4 x1 I' U3 A @+ }
- Serial.println("[HTTP] GET...");
5 V8 ]- X1 E) k6 f) V8 N - int httpCode = http.GET(); F& u+ z% e9 ]4 e- L E% d6 s
- if (httpCode > 0) {
+ ]- |. s4 O' Z! r - Serial.printf("[HTTP] code: %d\n", httpCode);
, v" }* H" f( D' L& J8 k* e - if (httpCode == HTTP_CODE_OK) {
* k. t3 z; C/ X$ O. n& J - String payload = http.getString();
. A, O! ^" d1 s3 N x$ n - Serial.println(payload);
0 i, W3 X) a9 b; s, C; p* n, X d$ W( j - Serial.print("\r\n");$ b+ d S0 L; U! l5 p% X4 [
- return payload;
( o& J- F& j1 n- h o - }0 Q+ A; A& x: J4 S$ E
- } else {# g8 b; u* G+ N4 v) c- L9 H" k
- Serial.printf("[HTTP] GET... failed, error: %s\n", t; i8 ]3 Z* V3 v
- http.errorToString(httpCode).c_str()); D8 d' B% C- `, I% K$ u2 ]+ K
- }* N3 b' M6 k. H5 y2 ?: g5 ?, F
- http.end();; y4 b4 ]' d7 a' q' N( K8 r
- return "";
! V, b5 ]. I6 {+ p' s - }
8 ^4 z# h: V* |# L - }& q% I/ c% V+ e/ t* w
- void mainAction() {" B6 I- v/ k# @+ U5 w4 e0 ?
- // 发送请求
$ M6 v6 ]+ E" G& E9 g1 W2 t - doGet("http://google.cn");
- n2 K/ u( V3 H/ C# e - }; Z/ k6 A, q7 y
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