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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)9 S5 G, F) l1 \1 a& ~
- #include <ESP8266HTTPClient.h>
4 O; q$ c: b: R' a2 K& T - #include <ESP8266WiFi.h># e2 A. P1 W* G9 X' P. r* p7 I3 u
- #include <ESP8266WiFiMulti.h>! E3 j8 h) I+ `7 l
- #include <ESP8266WebServer.h>" h7 M6 w8 k5 |: U4 H* o8 \! T
- #include <arduino.h>
: x; M2 j& ~$ b A - ESP8266WiFiMulti WiFiMulti;
( s {9 ~! R1 v, ]5 l P! G7 ^$ a - ESP8266WebServer server(80);+ P) x, X% f0 k% p
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 t* B! R# E. [" a$ K3 R U - ADC_MODE(ADC_VCC);8 L0 _7 ^; J! e# z
- void setup() {1 `5 ?& z1 Y! d% `
- Serial.begin(115200);
; G9 ]; L. a2 ?4 _9 E - Serial.print("\r\n\n");- q1 j. f, c2 g: L* r% X. e' n- Q
- pinMode(2,OUTPUT);* ~! Z6 [% U& z
- // WIFI
y7 W v! ~! b8 X: }0 s& K- F; L - WiFi.mode(WIFI_STA);
, `7 p) s3 K& H - WiFi.hostname("Sparkle");
/ F) h3 B% G5 A/ ~2 T, ~) O E - WiFiMulti.addAP("wifi ssid", "wifi password");
% V( g$ l9 k9 X3 X) Q7 [4 g - int tryNum = 15;, t' j m$ q& N& A
- Serial.print("Connect WiFi");
" x0 w! ?- _9 v3 ]2 g$ ^ W - while (WiFiMulti.run() != WL_CONNECTED) {' {( o, ^6 w" d! `- v
- digitalWrite(2,0);( T* I, W% s7 a; k9 a- i
- delay(200); X6 P w# g7 T" |! @" S
- digitalWrite(2,1);
/ d* ]' Z* ~1 y4 q) @5 p - delay(300);
3 _% ?" @) d" I' z6 a - Serial.print(".");
. f* F" Z' z, h: [) M4 b: R$ q - tryNum--;
: ?2 Q4 i; a7 h1 D5 \. [ - if (tryNum == 0) {
8 g9 r+ ^9 U/ T - // 1min
5 N$ A" E+ g: U - // ESP.deepSleep(60e6);
0 G" P5 J" E% q+ ?0 A! N - ESP.deepSleep(0);
: ?/ X3 j7 }: w" p" x - } f) @. q6 X3 e
- }0 @- F9 e; [' d' ~$ \/ g$ Y
- Serial.print("\r\n");
0 ^! M( B7 F( b# ]0 ? - digitalWrite(2,1);
6 e1 @$ R# e2 H- ?& s/ y) h. ^ L - Serial.print("IP address : ");1 z/ o8 d6 {/ _9 G1 D- M& x/ D1 S. _
- Serial.println(WiFi.localIP());
# ~* o, z4 j8 r - server.on("/", HTTP_GET, [](){
% g8 ~/ E3 v$ t U - server.sendHeader("Connection", "close");
4 m5 s9 l& R5 I - server.send(200, "text/html", serverIndex);' D/ ^! P! g- E& N5 ~ N
- });! B W, Y7 M2 x1 b9 \6 C
- server.on("/update", HTTP_POST, [](){. r5 n: F. f3 M% i0 ]1 j
- server.sendHeader("Connection", "close");( t: o6 H9 V$ z3 w* _6 F
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' [* ~! F8 c. d9 Z$ ?8 X0 q
- ESP.restart();
& l" s1 T1 t4 J' h! ^ - },[](){
0 L& x, s% O1 Z! B - HTTPUpload& upload = server.upload();
$ j6 M2 C i( }6 L# {& U/ i0 | - if(upload.status == UPLOAD_FILE_START){
) W0 V# X2 ^* N5 h( P - Serial.setDebugOutput(true);
2 }( T* E% H' Z' ~' E2 r - Serial.printf("Update: %s\n", upload.filename.c_str());
/ X: }. q; J7 u* K( q: O. d2 ~5 ]4 ]( t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 ~1 Y& X$ @ u. M7 {8 R n9 |) p; j) g
- if(!Update.begin(maxSketchSpace)){. D' }2 P. j, I
- Update.printError(Serial);* ]# F1 l7 u; E/ M, Y
- }
! i/ ~9 l. B3 s# H' S% F; B* |" b - } else if(upload.status == UPLOAD_FILE_WRITE){& u# Q+ y' q- w& I4 h* b# y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* r( [% b% u, X. B) _7 l/ a
- Update.printError(Serial);
" B* I) N/ m* p - }
`% F2 q: D2 y* i' Y7 _ - } else if(upload.status == UPLOAD_FILE_END){* v3 C$ m+ O, }$ k7 l
- if(Update.end(true)){: H+ Y9 X' Y" i- C! y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ j3 R7 g+ S6 a6 e - } else {9 z* U8 @* ] L2 |/ @. a
- Update.printError(Serial);
. ~! ?' m7 |6 t( ?! n! \6 l5 J8 k' {. X - }
6 z3 ~! r$ l) U* s - Serial.setDebugOutput(false);5 U# x2 x; q% b3 v3 ?
- }& r0 ~/ w3 l) a% ~9 R
- yield();
& d3 P' y: n2 R - });3 L/ f) P' L+ p3 h. t
- 8 ^+ p, p6 {. m, y/ K" E3 H
- digitalWrite(2,0);% T* Z2 n& ^) D
- mainAction();) f V) R* G2 a: M" W( Y
- if (digitalRead(0)){
8 S: x9 R* N1 \/ O! g+ m3 A. r - ESP.deepSleep(0);8 h# l( [7 c# M" c* ^! j0 D, ~
- } else {: s$ f% `$ D) U' t' o2 t9 Z8 S& A
- server.begin();
# R c9 A- u: a; @6 a - }
% I; K- I. I+ x- \& z0 X - } ?2 j6 s& w( U) ^+ Z
- void loop() {
, N. G2 D& r$ Q+ B7 m( }# S: t - server.handleClient();8 E$ x' n0 b/ {- I; R1 p
- delay(1);
# R0 L- ]+ A* ]5 `. P: K# b/ _ - }
. @: V7 z- b) U$ i+ m+ X* }, T6 X - String doGet(String url){+ `. F! k5 |, R( V) R. `" Q
- if ((WiFiMulti.run() == WL_CONNECTED)) {
( k% a. y' E+ e' o% f) | - HTTPClient http;% u T$ d1 R! v# q$ R
- Serial.println("[HTTP] begin...");/ e% u+ R$ ]9 V H. ?3 C) ]
- if (url.startsWith("https")) {3 ~3 n# e& D$ Y2 P3 q1 J+ W/ W2 w% o
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 u* n2 k3 z2 P - } else {5 g1 E( ]: ~$ `; X# g! R
- http.begin(url);- F/ Z4 {+ l, S& Q9 y" r
- }
$ l/ v( L+ }( l' X - Serial.println("[HTTP] GET...");
1 [, s' s0 g* [& M p: U! \ - int httpCode = http.GET();, b# H" h2 d0 h: ^
- if (httpCode > 0) {
|9 n' H+ I9 p9 D5 M - Serial.printf("[HTTP] code: %d\n", httpCode);
: |0 p" q. j3 l - if (httpCode == HTTP_CODE_OK) {
7 {5 _ ^- h' q - String payload = http.getString();* E$ P4 ?$ v2 M9 |% f; l4 i
- Serial.println(payload);2 s; s) N; M% F: J% a; l3 {3 j3 ^
- Serial.print("\r\n");
( f$ a" r* K* w2 W2 ~2 o - return payload;1 @* U! v! i/ R: B% m" |
- }, n( D$ k& w9 w9 b; ?
- } else {
, N1 e' D# k* Z, P3 g - Serial.printf("[HTTP] GET... failed, error: %s\n",
9 T+ \( F4 D# ^6 G - http.errorToString(httpCode).c_str());! K& H# M' I3 l- F
- }
5 j1 F5 A* Y: j - http.end();$ g; P& }/ j# X
- return "";
# t' g. z1 k% V- P- ? - }7 h, \/ l0 c7 R0 t' e- f- P
- }
% [# n8 E2 L& I/ E0 E# n+ V9 N9 G - void mainAction() {
8 T) w1 [, o& @( `0 Q$ L - // 发送请求
- b% g' t u* E6 i& u! e4 [2 ~ - doGet("http://google.cn");; J4 W1 S' @# n" Z! d
- }% A7 {8 @& k2 h! b
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