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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)
2 |5 Z/ ?1 A4 S" H, t9 B! x- #include <ESP8266HTTPClient.h>2 H8 {# M0 n1 ?: O( K$ X1 @/ Y
- #include <ESP8266WiFi.h>- {& i/ E2 n$ v( x
- #include <ESP8266WiFiMulti.h>1 D9 l! ~ _# r# }, y
- #include <ESP8266WebServer.h>. |# T8 \+ r" d: G
- #include <arduino.h>4 E- v; K, c2 `0 l
- ESP8266WiFiMulti WiFiMulti;# e* ]# N" A, b/ y
- ESP8266WebServer server(80);
- C4 E, m+ [1 C - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* ?' E7 v4 @3 {- E, n% ] - ADC_MODE(ADC_VCC);" @) l& b* f2 @3 Z f& y8 W
- void setup() {, d; I0 I; g6 f3 P
- Serial.begin(115200);
" _) d6 K: F" h9 O' H- l' v - Serial.print("\r\n\n");, D" p' ]. \4 V) K
- pinMode(2,OUTPUT);' m+ X% I4 B$ f* v
- // WIFI. j j5 B( N# f3 X0 z
- WiFi.mode(WIFI_STA);6 B5 J# ]; b3 J$ A3 K9 l
- WiFi.hostname("Sparkle"); I! g9 T: `1 C; o4 K
- WiFiMulti.addAP("wifi ssid", "wifi password");: ~. l3 |# \. P# ]- z1 M1 l) u: d
- int tryNum = 15;. K2 e/ [) { f4 r6 M( w$ G
- Serial.print("Connect WiFi");
, d- p6 K4 C) ?* R9 q0 E' T* ? - while (WiFiMulti.run() != WL_CONNECTED) {
2 f- U; \* y8 }, L- P8 ~- ] - digitalWrite(2,0);
6 t6 s9 O1 `) c; l( }, k - delay(200);
& Q' q$ I8 D) o, d5 u, z" W! Y$ }5 s - digitalWrite(2,1);0 @4 Z" @( z- L# _ U$ t0 N+ P. P
- delay(300);
s$ c4 i2 g$ j# T0 R' g - Serial.print(".");
7 h% Q7 ^9 e7 o - tryNum--;
1 Q. W/ }+ }. }! |1 h - if (tryNum == 0) {4 g; u; V u9 h+ f/ H* ^* _4 c
- // 1min% {8 k3 G8 l/ w1 F5 X( T
- // ESP.deepSleep(60e6);; [& O9 w' m) P! x, Q: b
- ESP.deepSleep(0);
# C, r8 I( d9 X8 R; _: c' ~! z6 g - }
x% d" |/ W& r0 [) R$ P4 y3 M - }
" J1 r4 ~9 D) Q4 }2 ^ - Serial.print("\r\n");
: E/ N# h: |0 M4 G. }8 P! ?; P! \ - digitalWrite(2,1);: r* G/ |( `$ z
- Serial.print("IP address : ");
( U) n( q9 d" Q: d% n% F - Serial.println(WiFi.localIP());8 n$ q9 M- g2 `: y7 ]
- server.on("/", HTTP_GET, [](){
$ z: E4 h; y) C2 r - server.sendHeader("Connection", "close");
) w/ C1 M; ]4 _( K - server.send(200, "text/html", serverIndex);1 i7 [/ B- t) B
- });
7 z0 g/ Q! O( T1 K4 [+ Q" g8 l - server.on("/update", HTTP_POST, [](){$ @+ X- [& d* `4 v. ] X( [
- server.sendHeader("Connection", "close");7 K. z/ H: }& e
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 v- O0 ^' ]1 g# f# o
- ESP.restart();
( @6 s/ D. s- f1 J% x+ Y3 c9 w$ Z& a - },[](){% x9 V2 T( O% ?$ e
- HTTPUpload& upload = server.upload();# [4 _; R3 p1 \3 B% s5 N
- if(upload.status == UPLOAD_FILE_START){1 P+ {: z( v* p" E) ?4 q4 L: K* d
- Serial.setDebugOutput(true);% @7 n5 y* a" W
- Serial.printf("Update: %s\n", upload.filename.c_str());1 Z+ I1 T) c7 U1 o# Q* D o
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
z' c% k6 A* Y% g* Y C6 L/ m+ U# I - if(!Update.begin(maxSketchSpace)){
7 [6 _; j8 h" I% F/ W - Update.printError(Serial);' k5 {9 ^9 G2 v& ]) ?( e
- }1 c. {4 l1 p9 _
- } else if(upload.status == UPLOAD_FILE_WRITE){6 i* ~1 s7 ]- O5 q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ D# y) ?+ ~# s8 v# K) `) y - Update.printError(Serial);3 f8 i2 Y! u- ^& C
- }7 V4 X. ]7 `5 ]4 r, m; V8 D: I0 r
- } else if(upload.status == UPLOAD_FILE_END){
! |* M# n0 c4 R: B - if(Update.end(true)){
: A) k5 E5 ~$ R& [2 F4 R - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) y Y& U1 v( ^6 W
- } else {
7 S T8 B9 Y' I6 t5 a8 S - Update.printError(Serial);9 h: F" G9 v9 c/ E% u K
- }4 w1 ]" d4 l" b9 {
- Serial.setDebugOutput(false);
; L' Q) H r& l0 g- x, g* @ - }$ L- \( \0 X& M9 t' R2 V) x
- yield();$ _ ~) ~9 Y A1 c/ @5 j
- });4 m [0 u6 V2 A- |
-
6 w+ P1 N5 T) j# j6 i6 Q - digitalWrite(2,0);
9 F; a2 \4 }0 J7 j w h# t6 ^9 T8 O - mainAction();
, s, Y4 h! X% a/ t$ a - if (digitalRead(0)){* x( q# b3 H, ^% ]( r
- ESP.deepSleep(0);+ R+ U% ~* h" I3 P: G, |
- } else {
1 M' O% l/ X7 X5 L8 A7 B0 D" ? - server.begin();# p' g# T- e; z0 x3 q) S9 R: }4 p
- }: Z; A2 c9 p0 m9 A8 j, ^+ _8 p9 \
- }
+ l* H; F5 Q- |. [9 u - void loop() {% o9 w/ ~$ o6 T* L8 a
- server.handleClient();) N" N" l8 }: } e- ~1 D% X
- delay(1);7 Q9 ^2 X' T' d7 {% {* o. E" r
- } r. ?3 z' g) U& R5 S3 w9 d
- String doGet(String url){
3 x* h# r( ^4 F3 X- } - if ((WiFiMulti.run() == WL_CONNECTED)) {' C# y4 u% D8 h! m0 w7 e; t8 L( _
- HTTPClient http;0 j3 I* I' K9 ^' G' P6 o/ x
- Serial.println("[HTTP] begin...");5 _# E1 q; b9 q; N7 \0 h7 k( @- q
- if (url.startsWith("https")) {
" W0 Z4 }( O, J - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");3 P& g% N8 A0 Q. v- K( v3 W5 P
- } else { D! L0 y# @4 O) R0 Z* F% S
- http.begin(url);0 g5 ~8 ^ |7 ^3 C4 P/ H
- }
" J- _7 a/ E4 u0 i - Serial.println("[HTTP] GET...");" Y- Q7 D6 J& L. k, f$ x
- int httpCode = http.GET();
. V* n6 h! s, F$ b. l0 Y - if (httpCode > 0) {& o3 Z) C3 |$ w# l0 l+ I( A
- Serial.printf("[HTTP] code: %d\n", httpCode); H! ~# T o2 b% Q1 A( D
- if (httpCode == HTTP_CODE_OK) {
6 O0 g# Z" _4 C8 v9 u |3 Y. K7 M - String payload = http.getString();
, x& a% p) F9 ]; o* Z! n4 a - Serial.println(payload);
0 z: ?; T4 j% O' j. J: _ - Serial.print("\r\n");
+ w& j9 b; D0 A! Q3 c - return payload;
9 V% h$ A0 U. e5 {5 ?; K9 E - }
# o& _: K) A. [$ j4 [ - } else {
3 k2 G1 o) m" t8 O. g( \ - Serial.printf("[HTTP] GET... failed, error: %s\n",# K9 X1 _6 w. n/ c% @! V2 U3 t
- http.errorToString(httpCode).c_str());
6 }! p2 K% I! w- T - }
, Q1 E1 g6 m1 P3 u - http.end();
, l; q1 `* \. L8 a& ~ - return "";( v' f, Y: ^# f1 t" g% H
- }
- m9 r. V) x; F8 _ - }; T( D9 p* Q; d
- void mainAction() {/ Y" Y7 |) w* G t8 i
- // 发送请求" U( I. Y3 P! [
- doGet("http://google.cn");& n! `8 U. B( h$ |8 u9 z$ ]6 x! S, \
- }* X' _" q2 v2 D5 `2 F
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