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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)( x$ \! u ?' B' {9 o9 X
- #include <ESP8266HTTPClient.h>
. c5 Q) y& V+ l; o9 C" O - #include <ESP8266WiFi.h>
+ t4 u9 c M* C0 k - #include <ESP8266WiFiMulti.h>2 p& j0 W/ `# h0 N$ z4 S3 u9 {
- #include <ESP8266WebServer.h>
9 t9 `9 f+ j" z+ [# E; Q0 q - #include <arduino.h>' O) g, y* E& N3 {4 G4 A2 f
- ESP8266WiFiMulti WiFiMulti;3 ` s5 J* `0 w. D! G& e3 {5 g
- ESP8266WebServer server(80);
2 p3 |3 C2 F- f. i6 [ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ o* Q0 E/ O$ i2 N9 D: L8 P
- ADC_MODE(ADC_VCC);! R! b$ G9 v8 ~+ P+ ^4 t7 ^% D: r
- void setup() {/ n$ D" O9 q8 M9 J6 U1 L9 b0 e
- Serial.begin(115200);
* [* Z+ D0 G# ~' Q% l# V) u - Serial.print("\r\n\n");
, q" W8 N+ z! V8 {8 j2 |) Z2 @" O) V - pinMode(2,OUTPUT);
8 {3 u# \* z* n! G* Q& Z. C - // WIFI
5 U% G; s8 v. \, v - WiFi.mode(WIFI_STA);: K0 ?% y, L& L0 r" E$ s3 x
- WiFi.hostname("Sparkle");% W* Z' P' @9 T3 s& _: \ V
- WiFiMulti.addAP("wifi ssid", "wifi password");
: {# ?: ]! B& h* r4 }* v - int tryNum = 15;
1 w4 D' i' _! u, q2 N7 c - Serial.print("Connect WiFi");5 \; W6 J; A6 ?
- while (WiFiMulti.run() != WL_CONNECTED) {* u% b0 k! d6 W0 ~, z/ k E
- digitalWrite(2,0);
& r" h5 Y' q4 |, A8 M - delay(200);+ {0 R2 Z4 b% s5 R# w! R
- digitalWrite(2,1);
; b& A/ q6 Z" ^4 G" n - delay(300);
A6 B9 R( [% e: l - Serial.print(".");* Y4 J: z% z+ `$ m! M
- tryNum--;. R9 x8 l+ B- _& [9 e( f
- if (tryNum == 0) {1 J6 A. R5 ]" s4 F, U4 w4 c8 F) [
- // 1min1 A5 ?7 y, |# Z2 T! G5 G, p$ m- L" o
- // ESP.deepSleep(60e6);. h: ^8 z4 h5 B0 U' d; T! B; z5 r
- ESP.deepSleep(0);
9 y. v! D" I5 p - }, ~% k X4 j) d0 c' F- W, ?9 P: X
- }' I2 N/ f: J) K6 J, w% }
- Serial.print("\r\n");( g- ?7 {$ F8 B* R8 w9 q0 @6 c* t2 i" m
- digitalWrite(2,1);+ e3 V' {( T' J
- Serial.print("IP address : ");
; W4 i1 x& ^! v( L7 q6 m - Serial.println(WiFi.localIP());% e! Y" k- h# T6 o, ?- P9 A
- server.on("/", HTTP_GET, [](){0 F! R" s" [8 }% h8 H; S4 r
- server.sendHeader("Connection", "close");! c2 ~8 e9 f+ t4 a: z
- server.send(200, "text/html", serverIndex);- P% G4 H5 Y" l. V% c* Y Y% N! V
- });: @! q0 t' m. s- f2 ^
- server.on("/update", HTTP_POST, [](){
$ S+ m M: _; ]! @4 R - server.sendHeader("Connection", "close"); J) k" }. f$ Y5 T1 d4 E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 c$ {$ p# U/ M) G - ESP.restart();
# \5 ~) f" L0 N C1 p - },[](){
" F% t& C4 T" b7 v: E( d - HTTPUpload& upload = server.upload();
5 q( ~' p* ?6 X3 q. u - if(upload.status == UPLOAD_FILE_START){$ a. e) h7 K/ G
- Serial.setDebugOutput(true);
5 e' G; v+ b8 K6 N, I) n; h2 A - Serial.printf("Update: %s\n", upload.filename.c_str()); u( P% V1 l* I8 k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" @: a/ G5 `6 P9 V! y - if(!Update.begin(maxSketchSpace)){; R0 v. x* ]8 f
- Update.printError(Serial);) e" \# R* |( P5 }
- }
- x( Y3 m0 h) F' D& ]2 r; t' G - } else if(upload.status == UPLOAD_FILE_WRITE){7 \) y6 v, I8 Y2 N5 g
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ ` e0 S6 @# |% s1 h, z
- Update.printError(Serial);
# G c p. h$ l2 B3 s5 U) v - }: Z4 z0 O( z O8 _
- } else if(upload.status == UPLOAD_FILE_END){$ @8 ] \6 K$ P/ ^2 H$ V
- if(Update.end(true)){
6 X# S0 s H! j8 ^0 T O* Z" ] - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 ~/ e& \# \8 b( ^1 h
- } else {
: B& y+ H, V, o- Z - Update.printError(Serial);* {! Y. @: h# P/ U |1 E- c
- }
7 w4 X: g( x6 a" Q - Serial.setDebugOutput(false);+ k- O; k, Q- q# n0 w, [1 ~3 B
- }
$ N. _5 [4 V, q3 A - yield();
) F1 ?" i; z" b7 D O( j+ Z2 l - });
2 T2 v' W5 j1 u! v, t - # c, U/ k2 Q. k$ |8 h
- digitalWrite(2,0);5 K# l& P/ Y2 N! l
- mainAction();
! x7 {; v0 q- r! r2 o8 } - if (digitalRead(0)){& B/ }2 o6 D7 K; L$ B! E
- ESP.deepSleep(0);2 r: V1 m$ q" P3 Y' k! J
- } else {
# c8 {& q% h7 j, ^' } - server.begin();8 h, D, [1 Y4 [1 V
- }
# v& g5 P. x) b1 A8 B' x - }
5 O1 |: `( U7 k L6 ]" b! ]9 { - void loop() {
0 i J0 V2 C4 [8 } - server.handleClient();/ m6 C9 v H9 y* S4 A7 b
- delay(1);$ j0 p# ^$ i! g# P3 A0 C, |
- }
5 p6 R. e0 C5 t0 I7 e& z! V - String doGet(String url){! K7 p, d9 f: E" N# W R& f
- if ((WiFiMulti.run() == WL_CONNECTED)) {: A# z; I# n) _! R5 f, n
- HTTPClient http;
! P' J8 M# w t - Serial.println("[HTTP] begin...");+ s5 `* ^* Z$ j6 R$ s( _
- if (url.startsWith("https")) {
* [0 y d; `8 I1 q( n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 W8 G- U' D- P3 ~# R7 a - } else {
- j' q% a* G) o3 V7 K4 R O) [ - http.begin(url);
2 S2 y! L0 ^) m: L# w1 N5 V: \ - }
( T: F x! ^6 B$ |" a; r6 d% E - Serial.println("[HTTP] GET...");# o5 d: M, ?) K5 n
- int httpCode = http.GET();( L' C* Z( e# F; A7 K
- if (httpCode > 0) {
4 j; }) Y( k3 o - Serial.printf("[HTTP] code: %d\n", httpCode);
2 c1 K6 T3 L& z0 ]: _ - if (httpCode == HTTP_CODE_OK) { A( v* J! v3 a; Z# J$ O# B
- String payload = http.getString();/ }6 r u& ?4 C9 ` M2 A
- Serial.println(payload);
7 X. H, P! \' x1 M7 R - Serial.print("\r\n");7 Y( n% p4 G: p1 n
- return payload;* Z" G7 {4 G! S; W# w
- }
5 _$ p1 E3 [9 J$ g& {. O& H - } else {+ ~( r# j$ a, ]) k3 Q
- Serial.printf("[HTTP] GET... failed, error: %s\n",* ]7 b, n) E! c G
- http.errorToString(httpCode).c_str());
. O3 b7 ]# B7 Y7 I - }
. d( j- w" s4 E8 Y, H - http.end();: b$ t! {: j7 {7 n7 a; P
- return "";
( f5 ^* E k6 `$ r0 X - }
, f/ {+ w" v6 E' \. p9 { - }
6 }' [ u5 @1 z- l* o, v Q - void mainAction() {# W. z `4 |# y: v
- // 发送请求; |6 Z9 C. T3 p/ l5 j
- doGet("http://google.cn");
- |$ [' N0 L3 E. ?# |. \ - }
; s" D4 _9 u# V0 j
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