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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 U, E6 k# y( @5 O1 |! i' F1 p5 D- #include <ESP8266HTTPClient.h>1 g/ b6 m. g! N
- #include <ESP8266WiFi.h>
5 R5 B0 _9 L; J' o4 { - #include <ESP8266WiFiMulti.h>
4 Z+ E& h. i& F- ^, _ - #include <ESP8266WebServer.h>
# i- I$ J. @* W6 v - #include <arduino.h>* O. h& n. T* b) {/ P
- ESP8266WiFiMulti WiFiMulti;! M% n- {) w, Z" b
- ESP8266WebServer server(80);9 i+ O$ M* v# D) k3 v
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: N6 m% }. w+ Z7 a - ADC_MODE(ADC_VCC);& e2 K& D- x3 i8 V+ f: ]) E! l
- void setup() {
- T0 X2 q s' T3 L( [ - Serial.begin(115200);; W0 N9 \* f/ U, p% L! I! V* l
- Serial.print("\r\n\n"); D" y3 h" I L. {
- pinMode(2,OUTPUT);
7 M5 d# A/ ^! o4 J# q) I - // WIFI& S2 W" X2 A% M% _3 R% h+ N
- WiFi.mode(WIFI_STA);
) J" w& ]# q, ^( } - WiFi.hostname("Sparkle");
1 P7 a( d( I/ e; r - WiFiMulti.addAP("wifi ssid", "wifi password");1 a' V% N0 K j. f2 n
- int tryNum = 15;
. s) E# @$ I; {) t; Y9 _9 B) G5 z - Serial.print("Connect WiFi");, n& J" n- N( X. f8 D
- while (WiFiMulti.run() != WL_CONNECTED) {; `. J) h) ^% B
- digitalWrite(2,0);: }% M, t" {( M* K+ l6 z% \ X( H2 r
- delay(200);: O: ^' u. V- Z* t/ R* k
- digitalWrite(2,1);: k" ^* A) c! i5 g
- delay(300);
$ p/ d3 o4 I, s0 }/ \" }8 G4 C - Serial.print(".");. E* P8 Y$ ^3 _- y
- tryNum--;
; m, p8 G9 C. { m4 Q$ {: {$ b - if (tryNum == 0) {
* P8 s8 q1 E3 P5 J6 K - // 1min7 |5 n/ G) k% ?8 k' B; m! n) x. o" Z
- // ESP.deepSleep(60e6);
$ q! ] k" S' N& z - ESP.deepSleep(0);* [3 W! M1 U, k, l' Y6 G: B9 v1 [
- }" ~$ R2 u' o0 k( e7 ?
- }- l3 M u' {+ k2 t2 ^
- Serial.print("\r\n");
$ \# C: Q- A1 N# r. ?6 @ - digitalWrite(2,1);
7 q( h4 ~" P7 `* n3 p - Serial.print("IP address : ");
" f8 i6 A+ U5 A) m - Serial.println(WiFi.localIP());
4 g* g6 `1 M4 U( j9 s' o& N- I - server.on("/", HTTP_GET, [](){; C$ U9 v" v' ]- w' W# ]
- server.sendHeader("Connection", "close");+ `- D5 X _! v( ?
- server.send(200, "text/html", serverIndex); I+ o& u! W( x' X$ v! P4 J$ n
- });. ?1 n, i) Z8 ]0 E+ J( {
- server.on("/update", HTTP_POST, [](){
" z! f) Z9 C% y g - server.sendHeader("Connection", "close");
P# p* B0 T& u - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: r) n! T! f+ ~- @) I% r' x; A - ESP.restart();4 F6 T( ^3 ?3 |" a- x
- },[](){
: E3 C- g$ d! C, p! M( B+ J - HTTPUpload& upload = server.upload();, @7 V4 {/ b4 J
- if(upload.status == UPLOAD_FILE_START){1 Q7 w3 H8 f; Q3 O# V, l0 T
- Serial.setDebugOutput(true);
' x/ R' Y& w: E+ W3 E( P1 q% ^7 m ^ - Serial.printf("Update: %s\n", upload.filename.c_str());
6 v# Q; {- d: T# m. \2 A - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( Q2 g5 g8 ~: Q! L8 e W
- if(!Update.begin(maxSketchSpace)){. }6 i! p9 X7 d1 [3 B$ e6 F
- Update.printError(Serial);
+ ? T5 T* p, K( l& M - }
, K& y/ D/ T8 ]# h: I6 V, [+ o! K T" | - } else if(upload.status == UPLOAD_FILE_WRITE){3 a* T7 k) s" O4 c/ c1 R4 w+ Q4 O R$ G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ G( }/ q& Q: M# B7 r* D% p - Update.printError(Serial);( C# `. i# _+ d/ L o7 y! V9 P" `( M
- }
6 r u; O' Q9 D - } else if(upload.status == UPLOAD_FILE_END){- v2 I, v* w: i. W
- if(Update.end(true)){
5 S1 z+ r0 ?2 {5 r9 c - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); n* \/ ~' \; D7 S0 n! Z2 ?: D
- } else {
9 _0 I8 R8 R& X1 ]8 G* |& `, H! G - Update.printError(Serial);+ n: W# Z0 ]5 L) F- q! g
- }
; ?9 F. e( u2 \4 Q4 E - Serial.setDebugOutput(false);
/ M" l0 O9 E1 |7 W. F3 N6 s - }
9 z; f' @: ^6 ^$ G/ _& F" u$ e! _' } - yield();
/ ]6 q% w, h& }7 _ - });+ `8 i _3 Y1 V6 |# l4 P
- / v! b: t3 Q) t0 s4 o0 J6 l
- digitalWrite(2,0);
, ^5 f3 |7 M. R B% q0 {4 `! { - mainAction();8 p& f( y& U0 i/ M
- if (digitalRead(0)){
* F: `' @1 X$ Q; g0 V - ESP.deepSleep(0);
+ I3 _8 J9 L, D7 J1 u - } else {) c) n4 m) ~) n' _& a4 @; {- V. q
- server.begin();
; G8 ^" S1 D; @) l$ r" | - }, n1 }) ]8 \2 m% A* H1 A& E; @: V
- }( t! T8 }% B7 `( d
- void loop() {
9 I4 |( K8 j, K - server.handleClient();9 P0 `: ~+ h; t" n
- delay(1);- \, |$ T/ y- {2 P3 w) q& [
- }& C0 M7 {' h$ {- [; ~
- String doGet(String url){
6 r# ?0 h1 ~7 y9 p - if ((WiFiMulti.run() == WL_CONNECTED)) {$ C+ `$ U3 ]# I! V7 v* T4 e
- HTTPClient http;0 A) r8 t7 g, P* g7 ~, f0 J' c5 t
- Serial.println("[HTTP] begin...");' c8 K9 ~+ C% @3 P3 G/ W9 w! Z
- if (url.startsWith("https")) { T% x( ]. c! h9 M5 p5 ^( ~$ D% 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");
- Q/ z1 F" v* m: s5 B3 X - } else {" T# M" r! b1 w" v+ o8 v+ ~# U& x5 P
- http.begin(url);
0 Y9 `2 R: D+ E/ Z4 d% j+ l - }
- t. R6 j8 v# L, a( D - Serial.println("[HTTP] GET...");
6 {. e0 y1 y7 Q4 h9 q - int httpCode = http.GET();% D! h, A3 w; x
- if (httpCode > 0) {
) k: @) H; T$ t. n* O# @( \ - Serial.printf("[HTTP] code: %d\n", httpCode);
; R6 F3 Z8 d1 o5 Q7 s+ Y* T4 r9 } - if (httpCode == HTTP_CODE_OK) {- B7 i* N/ E& P0 C/ r, q% k7 d! ?
- String payload = http.getString();
' |# F7 P" d! W* Y* D/ w - Serial.println(payload);
6 q5 L) i2 Q9 N+ m* S( Y+ H$ y: k - Serial.print("\r\n");$ e& F8 Z) I6 O
- return payload;1 Y4 E" c* O! d" u' I
- }, k- r8 v9 L6 k- q; }
- } else {
& L8 H B: t: W0 E - Serial.printf("[HTTP] GET... failed, error: %s\n",
% \6 ^0 h5 j; Y1 D$ K, s9 E - http.errorToString(httpCode).c_str());
. N# j9 p' B+ A4 K& k - }
, @* ~0 k+ [* s3 Y - http.end();
5 b. W+ F1 T, x/ E8 @ - return "";1 P1 k- ?- X; a& }0 C
- }$ {; p: t1 O7 ~! s& f* e. {
- }
/ Y: m" q3 A( `+ `3 ]1 v - void mainAction() {
$ y6 H" B! F9 r9 @0 L8 o5 C - // 发送请求
5 a" ?4 v: H4 E+ r" V3 g" r: [/ y - doGet("http://google.cn");
7 C, j& k' C2 _* g! G5 K - }
4 q0 g3 ~1 m3 ]5 Z7 ~+ C
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