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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)0 B9 `3 V2 M0 q: _% E" k# S& z, T( O
- #include <ESP8266HTTPClient.h>
# h7 i8 E9 v: L9 P - #include <ESP8266WiFi.h>' x# L m6 G$ C
- #include <ESP8266WiFiMulti.h>6 E8 B, `! U/ K2 F7 t
- #include <ESP8266WebServer.h>
8 b$ M2 a. N, W3 g8 o7 w& Z( _ - #include <arduino.h>. t0 C8 g$ }9 T. v; s% K) B9 _
- ESP8266WiFiMulti WiFiMulti;4 u" `* N0 l: F" k0 M1 D; v
- ESP8266WebServer server(80);. j. l) x$ Q0 ], f6 c! I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 x; ^0 D( u1 }8 z- ~ @
- ADC_MODE(ADC_VCC);+ B1 x% H0 e. Y$ l" p
- void setup() {2 `7 j) |" `2 F& g; n6 S
- Serial.begin(115200); ? b: M. U6 p' g# }+ A
- Serial.print("\r\n\n");$ d$ m V" g! p4 X: @8 ^
- pinMode(2,OUTPUT);
0 L5 C1 s% y, P9 s% Q# O3 N - // WIFI7 O9 D/ x6 j5 |$ ?6 @9 o7 |+ F
- WiFi.mode(WIFI_STA);
. {" G" |% q6 J6 @3 W - WiFi.hostname("Sparkle");
}% e8 V% b0 }$ W0 @ - WiFiMulti.addAP("wifi ssid", "wifi password");1 l4 u6 d6 b1 k- ]' X# k' J5 l8 [$ P
- int tryNum = 15;
2 ^/ W. x$ g- j' J' k c - Serial.print("Connect WiFi");
% w8 x! w) e) ^+ q8 g$ }3 C" p - while (WiFiMulti.run() != WL_CONNECTED) {
# V- K5 Y" C' ? - digitalWrite(2,0);" c9 x: k" t0 N( [% W
- delay(200);" R4 t0 W9 p& D: y4 @5 B# p
- digitalWrite(2,1);
) L) I* z5 S) v4 a7 e/ B$ R2 Q' k0 P - delay(300);7 D, q# ~2 ^, p$ a4 M, J5 c- s5 Y
- Serial.print(".");
& Z" w* @8 I5 O2 m1 n+ Q - tryNum--;
$ f& o4 j. y7 I1 Q: G/ G, i0 C - if (tryNum == 0) {) q3 X' A# C R6 T' @ X
- // 1min( P' ^4 a( K% c. L+ b
- // ESP.deepSleep(60e6);
1 j$ k3 d9 a: o$ y - ESP.deepSleep(0);/ g% {5 t1 v/ r8 k* N; e
- }- I" w ^0 p5 K! R+ ^1 K- H
- }) O# @8 \8 |! I: J
- Serial.print("\r\n");( i9 r. t E3 Q: m% Y: z
- digitalWrite(2,1);4 T/ f1 X( n- H% _" U
- Serial.print("IP address : ");
: b+ K& M+ E8 J- r - Serial.println(WiFi.localIP()); E' [# E0 S$ i! p3 m! x; D3 l
- server.on("/", HTTP_GET, [](){
2 j A3 T$ s) I# z3 d& M0 F" U' o! S% m - server.sendHeader("Connection", "close");1 \6 N9 E2 o! A. i
- server.send(200, "text/html", serverIndex);
" E0 x' K% H6 T - });, g8 Y+ F+ d x4 w r* d
- server.on("/update", HTTP_POST, [](){
$ Q. o8 M* W$ S+ C0 W& u - server.sendHeader("Connection", "close");
) V* b( E$ C8 o2 S+ c - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 ?' y B! ?0 i' Q9 |8 n - ESP.restart();/ Z: g7 n0 {" Y. I# B! S
- },[](){
" U1 L& @3 B$ o. l+ G1 R/ _ - HTTPUpload& upload = server.upload();6 J5 W, q7 `+ ~ [
- if(upload.status == UPLOAD_FILE_START){3 b8 c6 ]8 C) R4 m7 Z+ e A( Z& u) L
- Serial.setDebugOutput(true);
7 L- T& R" D5 f - Serial.printf("Update: %s\n", upload.filename.c_str());( r4 f) ~; u% H- Z& C
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 Y7 v0 |- W: G# y! E) m
- if(!Update.begin(maxSketchSpace)){) k( s6 c7 p8 V. T1 J
- Update.printError(Serial);
- k- T5 m- D& Q - }- _# V6 {9 m. f( _. p* U
- } else if(upload.status == UPLOAD_FILE_WRITE){
4 l0 D* @0 i" b4 i7 e. f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) A+ Z0 Z# p3 F% b; T0 \ - Update.printError(Serial);$ f# g$ A" M2 j
- }' m5 V3 |6 L* W3 k& l. a. P
- } else if(upload.status == UPLOAD_FILE_END){- I# W. b4 e1 i f* u) h1 t/ i. b
- if(Update.end(true)){
: g% `/ Z% K# E) U5 ` - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" }( h. A' T& [. y9 k. G2 S - } else {
; O" U& g5 @+ O# Q9 m4 Y - Update.printError(Serial);
9 \& D; @6 A8 d - }; T. |4 v# L' @) c9 U& U3 f
- Serial.setDebugOutput(false);
, Y8 D# g* s- v' K - }% A" X3 Z. r+ R8 ?+ m
- yield();
) k; I. Z+ s5 N" J) n+ e - });
6 j& M# b9 t; L( X" s -
) G8 x1 |; _% @4 s - digitalWrite(2,0);
* ?1 a8 N; u; u! J Z* x$ T# q2 F - mainAction();3 z5 P1 i4 \! Q! F0 M: U
- if (digitalRead(0)){/ I/ ?* E- v2 g% ^2 m: c2 M( t
- ESP.deepSleep(0);
. F! L: a( R* `- c0 U - } else {% ^3 @: t! G! h& e
- server.begin();$ O7 I- q8 q( J: R% |+ e, {
- }
; G8 c/ H' L! e5 b; X4 C - }0 L2 g. T, g$ p* q; w) t5 q
- void loop() {' A) O+ |! L, m1 q" J( R
- server.handleClient();/ W3 s7 i# c, i2 x9 Q, x
- delay(1);
1 E/ t8 B3 T# f6 F. E5 y - } Q; g/ x6 C5 n7 K
- String doGet(String url){, x4 ~) E" _2 y1 U" h# ~
- if ((WiFiMulti.run() == WL_CONNECTED)) {
. u* W$ |1 v \1 v/ D$ m; t3 T$ J - HTTPClient http;
" a7 w- H- R3 e. @3 u5 @7 Z0 h3 l - Serial.println("[HTTP] begin...");5 K4 D8 E" u4 z. u- {: [- _* ^! c
- if (url.startsWith("https")) {
8 K H% `- B- u/ I/ n; q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
8 q+ m0 C4 a& M - } else {
9 ]" J+ W! \) A9 f6 C1 g, ?2 d - http.begin(url);
# z* F+ H3 z. x1 f, L3 Y1 P - }
. M; S# n/ |1 g5 Z1 W; ~8 B - Serial.println("[HTTP] GET...");& u- N; E: \! L9 T) |' }
- int httpCode = http.GET();
/ C/ o. `0 l' H% L$ e2 w: K - if (httpCode > 0) {
( X4 ?# B, w# U( k7 |4 H - Serial.printf("[HTTP] code: %d\n", httpCode);
8 l! R6 \9 \3 K J - if (httpCode == HTTP_CODE_OK) {
4 o' S3 G6 C1 x$ J/ S3 v+ a% q - String payload = http.getString();
7 z p5 d W; _9 Z5 j7 X - Serial.println(payload);' L4 `; I8 w2 a1 c7 W; ]
- Serial.print("\r\n");% |5 X- ~1 X G0 A
- return payload;
! B' y- C- I( D# ^3 \ - }
, s: d$ `# k. x - } else {
5 v Z+ u7 Y5 M" `( ^1 S0 x' ~ - Serial.printf("[HTTP] GET... failed, error: %s\n",
; L0 B' {2 r) a6 }5 H6 z" o - http.errorToString(httpCode).c_str());9 j \& c( c% q( N- q; U
- }
& H% x, E6 y/ j9 [ - http.end();
0 i. O- F- K5 b& m) O' N6 K5 k - return "";
2 e+ X# U. U* c0 C5 o- x- Z) j - }
! G5 G. `* d8 P9 }. C0 j - }- A; ^4 ~# k4 F$ V" k
- void mainAction() {. g. |1 c8 e& i! {! E. q" r3 C
- // 发送请求6 ?1 \6 I$ X/ _. Q
- doGet("http://google.cn");
- |8 K' s% N, P0 r8 j8 f - }
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