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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)
+ C& Q" k, _, x' ~4 f& a0 W$ M- #include <ESP8266HTTPClient.h>4 \$ F9 P7 e5 H8 R9 n
- #include <ESP8266WiFi.h>8 w5 A/ W2 x3 }5 Z7 n1 w
- #include <ESP8266WiFiMulti.h>
% K- w/ {! c ]& V! } - #include <ESP8266WebServer.h>
5 L( W. Q; D5 s. g; ]5 i L - #include <arduino.h>5 U. ?, y+ g: @# f/ q$ @4 t z
- ESP8266WiFiMulti WiFiMulti;
, [- U7 l. V6 _/ B - ESP8266WebServer server(80); z' W0 m' h* q, a4 x- R
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" o* o9 H9 o+ Y - ADC_MODE(ADC_VCC);
, b* n" C8 O# t/ h7 e - void setup() {
$ l8 F+ }# J; y8 Q - Serial.begin(115200);
1 K9 p# |9 s/ t- N3 b$ n0 p4 D - Serial.print("\r\n\n");/ Y9 j7 S6 A" {" ^
- pinMode(2,OUTPUT);
' ]+ B. r5 a0 i# k - // WIFI
$ X, z2 K! q" x5 P% } - WiFi.mode(WIFI_STA);4 Q- J; K' L Y* g7 d. B' v3 ^9 r U
- WiFi.hostname("Sparkle");, P. q' D: U0 Y: _
- WiFiMulti.addAP("wifi ssid", "wifi password");( h) V& }- X* }7 [( y! c6 U) b
- int tryNum = 15;; A$ G# O8 }6 Z+ i, S7 m
- Serial.print("Connect WiFi");$ [: L) F* W: N$ [7 Z$ U
- while (WiFiMulti.run() != WL_CONNECTED) {
; _5 J" C/ c* X( D' A" P0 j- G* o0 k - digitalWrite(2,0);' w ]2 d. q& H% O ?3 m2 e
- delay(200);. e, h# D; T3 E# W0 ?
- digitalWrite(2,1);
( r2 q. \) [! _% J1 L$ e: J - delay(300);: T' p# ]- l6 E `5 R
- Serial.print(".");# }8 p: E ^' Z$ X3 p
- tryNum--;9 i( y2 j) l, L1 c
- if (tryNum == 0) {/ ~0 A5 A- c$ {7 r( b/ |: l
- // 1min
5 u+ i; o7 T4 F$ B4 W - // ESP.deepSleep(60e6);
1 b8 Z9 x4 [$ E1 @4 i% Q1 y - ESP.deepSleep(0);" `7 G/ i# K6 N& Q; t. o
- }
) E# G% c) }; M; R2 V9 @ D# [! x - }7 B4 H/ f- A' l+ \
- Serial.print("\r\n");; X6 n3 \! T, P, L2 C
- digitalWrite(2,1);- @0 M/ J* g6 u' Z( u8 [1 |
- Serial.print("IP address : ");3 l0 u5 Z: P3 V2 D/ }& h, I. T
- Serial.println(WiFi.localIP()); g: h1 }, H* v9 t. {+ \) X" N
- server.on("/", HTTP_GET, [](){% W- f) O; O8 [! |" v
- server.sendHeader("Connection", "close");+ V, E8 _9 [4 ^4 }' L' [( [/ Q
- server.send(200, "text/html", serverIndex);- V; d$ y$ G$ c7 I0 p# ]% u0 P
- });
4 F; n; F K$ l e1 o4 t. |% _ - server.on("/update", HTTP_POST, [](){
( y) v! n) v2 A/ y* S7 ~ - server.sendHeader("Connection", "close");
0 Z. Q, c/ x U5 o5 b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ D% H8 _. v! I+ |3 i$ D. w% Q7 U
- ESP.restart();
% e: |8 q& y) ?) l e, i o - },[](){; r6 ?5 k; ~1 ^' O
- HTTPUpload& upload = server.upload();
* C, }( o5 x. @2 T: X. ` - if(upload.status == UPLOAD_FILE_START){
* x( m# u$ E2 W - Serial.setDebugOutput(true);
0 U3 |) q4 |5 O# U& ~ - Serial.printf("Update: %s\n", upload.filename.c_str());7 G2 D& o1 h5 c) G. g4 z% {0 k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
G b# x: K4 h9 I# j0 G- R4 y# u - if(!Update.begin(maxSketchSpace)){8 g0 H$ K) Q% J6 m% M( i
- Update.printError(Serial);
8 `' |8 H& @- Z - }
9 w! F5 f5 h6 t0 k& H2 D! L, u7 L - } else if(upload.status == UPLOAD_FILE_WRITE){
. z& C1 K/ f7 S1 } - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: p% \2 K2 U# h$ W
- Update.printError(Serial);
- ~- P" B7 E6 m6 t; v6 M( u - }3 M6 s8 Q. }; s9 X& f
- } else if(upload.status == UPLOAD_FILE_END){- S& C4 {2 a& X6 U+ `4 {. A$ k5 o& T
- if(Update.end(true)){
" c% D+ r7 c, s; e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' J# r. ?' t3 X0 A5 T2 f1 ? - } else {
5 c, u: ~. q! O - Update.printError(Serial);5 A2 J4 V* U. ?3 c$ y
- }6 Z& Z# v( A+ [; Z5 I7 s4 |5 f, y3 E
- Serial.setDebugOutput(false);8 E u: P' a6 O% j3 M
- }; m2 H- `/ s3 v. T1 M
- yield();2 d, t8 ]% n) z
- });4 ~# v; {# E9 \
- 7 O: T1 k4 r7 H; ^
- digitalWrite(2,0);$ U3 l: N' Y9 I) z e$ C
- mainAction();4 f# l" J. n1 d4 q' x
- if (digitalRead(0)){
/ l0 q2 M) J- l R. B/ k/ e4 w - ESP.deepSleep(0);
9 E$ N5 {& P# Q& D; {3 d" } - } else {+ A# Z0 A; L0 ~
- server.begin();
( Y3 u; J' `$ p$ o - }
$ p! u3 j4 p6 y; Z - }( G q' A0 N$ U
- void loop() {8 l/ e4 r0 N( c* w( r
- server.handleClient();
) ^4 j+ _6 r; Y9 A - delay(1);+ V# R: `0 d, j% @/ R/ y+ }" L ^# ^
- }; ? |7 f! u" Z+ S
- String doGet(String url){ R- a9 L; Q# |/ c! x
- if ((WiFiMulti.run() == WL_CONNECTED)) {" I8 L* {$ \/ H% m) c: i" Q
- HTTPClient http;8 X# d* M3 n; n! B, _6 v
- Serial.println("[HTTP] begin...");7 L' O6 X- c( U
- if (url.startsWith("https")) {
8 ~9 ~# p" q( c* Q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& i4 E& }; f( d# f2 C4 R6 f
- } else {
5 G7 C' z) y# ^5 G9 T6 ] - http.begin(url);
X& y& {# g5 S5 ~& {+ `# v$ I - }- |, ?( V- Y5 Y# c, { w K
- Serial.println("[HTTP] GET...");
$ [5 Q& N! C! {7 d - int httpCode = http.GET();+ S- h6 A/ S) J# G! x( Z
- if (httpCode > 0) {
1 _$ S' `, ^- |/ z2 m% x2 A - Serial.printf("[HTTP] code: %d\n", httpCode);1 H. A/ A6 g% l
- if (httpCode == HTTP_CODE_OK) {: n" \! G- O1 T
- String payload = http.getString();! _ D* v! @" f- ]& V
- Serial.println(payload);
+ D7 ^$ y7 w% ~ i - Serial.print("\r\n");7 X8 `2 K, D0 S5 z
- return payload;& v9 D6 O4 `9 C* W
- }& x0 l: N* v: B. R9 T
- } else { P/ b! `) ?) I2 y: {* Y
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 ~1 a% U( D) v9 ]" M5 k0 q - http.errorToString(httpCode).c_str());. E" r0 m$ X' u4 `( O9 C3 d
- }4 S) u6 @6 A) y
- http.end();# U: V$ G3 n" ~0 ~2 k+ c
- return "";
/ r0 [$ `0 p% c" F0 | - }
: f4 D% ?( U. j9 c5 Z - }
2 c/ y* \- h6 L+ g/ d' V0 ]3 { - void mainAction() {
2 Z- Z; f2 _' W! o: Y - // 发送请求' E& s% O8 [2 ?2 s% L% f( }4 I
- doGet("http://google.cn"); u$ y; n% u: ~4 c8 d1 b R9 f
- }8 N% W6 C' h; X2 Q$ O3 C1 F( E5 S
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