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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)
% T6 }9 @3 l3 S R. U! ^- #include <ESP8266HTTPClient.h>
Y1 f7 }& P" u6 s0 V1 Z+ Y6 g - #include <ESP8266WiFi.h>
' m" X. d% |1 M5 P1 `( b - #include <ESP8266WiFiMulti.h>
! `( z0 c6 Q \) i5 }4 r - #include <ESP8266WebServer.h>! P8 g5 @: x! P S
- #include <arduino.h>
. o; C# V9 m- ]9 T+ ^/ } - ESP8266WiFiMulti WiFiMulti;. `! f& q3 D/ r7 `8 O" w
- ESP8266WebServer server(80);& g6 Z C% p* X; @* Z: J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% K/ `2 e9 {- B" |$ T - ADC_MODE(ADC_VCC);
1 w i: c* {8 t1 s3 Q" F" X - void setup() {3 r( |' [6 @ k0 I% ~
- Serial.begin(115200);
* B$ F; D; m5 N, \0 }0 O# j Z - Serial.print("\r\n\n");. u ?# a3 h5 ]6 D3 |) c" w2 i% m
- pinMode(2,OUTPUT);3 t5 w" h# C. e" y
- // WIFI
! x8 F: `7 i! [! l" e! w" f b - WiFi.mode(WIFI_STA);
+ l d: i! ?% m, s+ k& l - WiFi.hostname("Sparkle");
# |$ Y/ H @* j" N& Q+ @. k - WiFiMulti.addAP("wifi ssid", "wifi password");
- U0 W+ j, H$ q0 n+ ] - int tryNum = 15;# W X- f9 {" U e
- Serial.print("Connect WiFi");
/ P( Z) Z0 d7 j: ? - while (WiFiMulti.run() != WL_CONNECTED) {7 D7 F7 }% o0 [! S1 P0 J. e
- digitalWrite(2,0);' D5 C& L$ i; Y. B3 A8 D
- delay(200);
: x% B$ ~* N% `* h/ d" }, @ - digitalWrite(2,1);8 m R' N! s4 z0 i; `
- delay(300);
& D3 u( U i1 `* K! T) B - Serial.print(".");
4 Z" D8 v6 Y; V+ z* P& b - tryNum--;5 U) Q! {9 v) H
- if (tryNum == 0) {% Y9 w8 ]& N4 Z4 G7 X
- // 1min
; `9 j3 Y* C" o - // ESP.deepSleep(60e6);
* ?2 P* p$ _+ I) I( F- r+ N! e - ESP.deepSleep(0);
+ ]8 H O- \( Y. R: | - }
0 a& f4 K* c/ T- c: U - }
8 V( A8 k* K2 ]9 q/ z$ A- p: M% Z' d - Serial.print("\r\n");1 p' s2 d/ C. n! J: T" o
- digitalWrite(2,1);
9 O- i7 B. g0 m" i( G+ V8 M O - Serial.print("IP address : ");
! l* ]+ w$ V/ } - Serial.println(WiFi.localIP());( ] k: @2 ^8 y0 ]
- server.on("/", HTTP_GET, [](){
3 M+ g9 Y" \3 S5 b7 D' L - server.sendHeader("Connection", "close");( K P' l/ H; v" X6 H4 z
- server.send(200, "text/html", serverIndex);
- {0 I% h8 E3 s! G) `& g - });
+ K T I# l8 B6 Q - server.on("/update", HTTP_POST, [](){
3 P0 r8 l9 w7 ?; F2 V2 N - server.sendHeader("Connection", "close");
! W8 m: ? D9 }% ?) \3 g6 [3 D5 R - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* F' [9 G* s; e. [. s" h3 i
- ESP.restart();
5 A/ y- f B! u5 Z5 X- ] - },[](){# P1 i$ B! g, p+ H! _! N9 N, L+ ^
- HTTPUpload& upload = server.upload();- R* s! u! I; v) E9 ?8 s: l$ j9 S3 s
- if(upload.status == UPLOAD_FILE_START){7 C1 S1 e) Y& Q- m- M3 ^& C
- Serial.setDebugOutput(true);1 I6 w) X1 P7 ] l9 m
- Serial.printf("Update: %s\n", upload.filename.c_str());
3 [9 [6 w! ?* \ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- d' |7 l8 G/ a" \# O+ a - if(!Update.begin(maxSketchSpace)){) x* f1 z: ~' t: N, f7 `" M
- Update.printError(Serial);
( N ^) R! B. m6 H7 f+ y3 | - }9 T |) p. F2 y: b% ^9 J
- } else if(upload.status == UPLOAD_FILE_WRITE){4 l9 K3 j" u- j+ k6 X5 [$ `" x+ O
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 V; t7 ?- y) @0 r# [( @" |3 h
- Update.printError(Serial);
4 M; O+ I5 X" L, R2 M2 ~ J7 R - }- t& [/ ~; \% ~1 O6 f3 G" R( Z
- } else if(upload.status == UPLOAD_FILE_END){
9 g n7 |6 X U8 X1 E, N& J - if(Update.end(true)){
/ u! u$ Y# C! W# t7 U) E& U - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ w; s" s' x. j0 f7 m6 ~ - } else {. G. X+ k: N8 W9 ~, h
- Update.printError(Serial);
0 z2 v6 t! a9 ~! x1 O- i* l9 E - }
& @; M( b! d V) j6 p - Serial.setDebugOutput(false);
2 b- e" {& I$ i5 q1 n K+ U - }
% z8 ~+ Z: D2 I - yield();6 ~$ ^9 [" `6 e6 C: k s' T
- });
* k3 i/ o! x6 ]; a -
Q9 M8 G3 M) V* l, q - digitalWrite(2,0);; p# I) R8 X9 ]( S; v( F& s
- mainAction();
6 L# Q) O9 S4 c U: x - if (digitalRead(0)){
) q/ w" a8 ~8 ]; x3 r - ESP.deepSleep(0);' w1 z4 k! B1 F; d, _; o
- } else {0 W0 |8 L5 ~; t k% P
- server.begin();2 d$ x1 W6 i: v. j- q6 a
- }; u9 t* }: d2 ~1 C* y5 v
- }
6 ?( q9 U, T# I7 P/ P& C - void loop() {
0 \8 l4 |# u& ^5 Y8 P5 n1 K - server.handleClient();
% o6 w: _8 C* G) Z) X4 G - delay(1);6 F- Q0 I x% D: A& L9 P' I% H' x
- }
5 o' T Y! ~# T) t1 z" Z$ s3 O - String doGet(String url){% f) X+ h/ {8 r6 |0 J
- if ((WiFiMulti.run() == WL_CONNECTED)) {
/ }, V; w. @: E9 g0 E - HTTPClient http;/ e8 ^9 ]) C9 L' d
- Serial.println("[HTTP] begin...");
0 e1 ?- o1 l0 v& i9 J# U - if (url.startsWith("https")) {: [ t- Z8 x( {/ |+ l4 `
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ C. z( y3 u% ^. a
- } else {: `$ _0 P) U0 ?: p
- http.begin(url);! E5 j Y0 _& q, h
- }/ ~! s x/ w: M
- Serial.println("[HTTP] GET...");) {& H4 P% P' D' {: w* O
- int httpCode = http.GET();
w, h. M+ X6 W8 j1 G. f6 | - if (httpCode > 0) {: `+ f& ~/ y. J9 b% u7 z. v( |
- Serial.printf("[HTTP] code: %d\n", httpCode);8 r$ d* o' ~9 \; D
- if (httpCode == HTTP_CODE_OK) {
/ A2 q1 `# U9 X' b8 L3 @1 z3 ? - String payload = http.getString();
+ }' P( {# F$ Y4 M - Serial.println(payload);
6 i# p9 x* w2 z - Serial.print("\r\n");7 q+ k% V* U0 q* H
- return payload;
- _! _) m" _7 M2 w. v - }
- G! n/ L7 C4 d. J - } else {* X* q: N3 C, {' i' L3 c' O
- Serial.printf("[HTTP] GET... failed, error: %s\n",# K1 U. R+ b) Y, |$ v! I
- http.errorToString(httpCode).c_str());
( C* |: }( p( m* V" n - }
j: T2 o: [$ ~. z. A: F - http.end();
2 n9 l9 T) B# [# a# w( X) h - return "";
( s: e, Z/ }+ H& y' M: a; n0 K - }4 ?% n" I: q6 d# |) @
- }7 W4 E$ Z: }- P5 H7 n1 `5 P
- void mainAction() {( {. P6 c5 {4 E6 d! A: O" }8 B0 S
- // 发送请求# V, T/ c1 w& B/ d7 Y
- doGet("http://google.cn");
+ c& y* u2 C8 K( t6 B' ^9 s - }7 [' G2 A. u# H. i
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