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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)+ A, L* y- K: X; l# h" t2 Q
- #include <ESP8266HTTPClient.h>8 ]: _/ V& ?' }: b3 b3 q
- #include <ESP8266WiFi.h>
% H, U/ c+ C5 Z8 q: N g - #include <ESP8266WiFiMulti.h>
/ _& S/ j+ v) W2 w - #include <ESP8266WebServer.h>
# L) r. d5 L8 m/ J1 ] N! [' s - #include <arduino.h>
" I1 w" f3 g1 u/ l - ESP8266WiFiMulti WiFiMulti;" ^5 K5 R7 J) C j) P
- ESP8266WebServer server(80);
/ k; @( B$ _3 m, o, o' O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: J/ }+ R1 l- Z+ _# F - ADC_MODE(ADC_VCC);, L: \; [' i1 p+ Q. v4 J* B5 _
- void setup() {1 @3 Q- H" U$ i4 l6 u
- Serial.begin(115200);
; N( e, K; \7 A9 Z - Serial.print("\r\n\n");
, n/ O9 E: C8 {0 r# ~$ q* U2 e - pinMode(2,OUTPUT);5 G1 z- C& T a7 K, ?4 W1 ?( H3 t7 A1 N
- // WIFI
% @! j4 [6 G; _' V. J; v) [3 Y - WiFi.mode(WIFI_STA);
4 {7 z& O) t) E# y2 S - WiFi.hostname("Sparkle");/ H. E, @* G8 D$ V8 z
- WiFiMulti.addAP("wifi ssid", "wifi password");" r' f+ ^9 \& M/ X
- int tryNum = 15;) d0 k5 Q" Q0 r" c1 l
- Serial.print("Connect WiFi");
& ^* H+ K; V: s, q5 O - while (WiFiMulti.run() != WL_CONNECTED) {: c r2 z$ l# Z8 k' p/ |1 C$ b
- digitalWrite(2,0);7 L) |: c* Y7 W2 z4 l0 [$ R: S
- delay(200);: Z, p" U# Z, H, g# p8 f
- digitalWrite(2,1);
; W. O4 u7 b! f - delay(300);- c+ O2 {& ?. J( ]. N& {( A, T
- Serial.print(".");! A/ ^$ m" g( }
- tryNum--;- T; g$ f. X. f5 G g7 B
- if (tryNum == 0) {+ s0 B" V3 m9 a% x, m6 J
- // 1min
* e% ^$ C, f7 g- N - // ESP.deepSleep(60e6);4 I8 N E6 v+ A
- ESP.deepSleep(0);
9 q0 _, _# Q( e! J1 g - }# }+ q+ p) N5 | R' I7 k
- }
% z' B7 G7 b$ D0 A# f% A - Serial.print("\r\n");! w& L& w4 h6 _
- digitalWrite(2,1);
/ { }1 i+ W3 g2 W* q% x - Serial.print("IP address : ");
- W- x8 ~# t9 X) B; y' V8 _ - Serial.println(WiFi.localIP());5 x( J5 x! I* {" ^0 |/ _7 c
- server.on("/", HTTP_GET, [](){# J. T8 i' S' V2 X
- server.sendHeader("Connection", "close");
, {3 r1 A) G( M5 r$ b$ Y+ p6 s - server.send(200, "text/html", serverIndex);" n V" B1 M/ `1 N3 G# |; z+ b6 i1 k
- });
" r2 L7 ~: C9 j$ C5 y2 X x! E! Q; K/ L - server.on("/update", HTTP_POST, [](){) S8 X+ ?& t# v7 H
- server.sendHeader("Connection", "close");/ G6 ^5 ], G$ @- [& i3 O v/ t
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' f# u' Z" c$ y& O
- ESP.restart();
/ v3 b [& W2 j1 [ - },[](){# |; ^- O) K8 E: a
- HTTPUpload& upload = server.upload();
' F1 B) f( y% W$ e- d - if(upload.status == UPLOAD_FILE_START){3 P: D# E7 X! F/ W) g' N: ]
- Serial.setDebugOutput(true);2 h( g# e) I5 N- _- S7 J8 m
- Serial.printf("Update: %s\n", upload.filename.c_str());
; k! U& x$ B5 b H - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: `, [: w6 L; E' B# F' s( z( A - if(!Update.begin(maxSketchSpace)){
- `& ^& a; S1 k# P% s4 w - Update.printError(Serial);: U' D$ H" C% b
- }
$ Z6 z4 W8 B9 ]% y/ ?7 W - } else if(upload.status == UPLOAD_FILE_WRITE){
# z) w5 [9 n a6 A - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){$ G4 o0 k4 D/ _# t
- Update.printError(Serial);
* L9 q/ k7 t; P4 e& c" L. `; a% B$ C - }
6 ?% K8 E" R# {- d* K7 I6 ~ - } else if(upload.status == UPLOAD_FILE_END){2 j T- M( H- M
- if(Update.end(true)){$ j; A X$ P: H% ]* D5 d$ }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; w# m8 v7 o$ j5 A: C& u
- } else {
0 l- r9 n0 r! q$ V5 v4 Y7 }( n - Update.printError(Serial);
/ p# Y1 d3 `9 y& w( E - } A9 S1 N& q: L& V; ?
- Serial.setDebugOutput(false);! t2 Z" O* ]; l2 N1 A- s
- }9 c! G1 C4 h9 n- X- W) A: }
- yield(); ~& o. [2 Q. d& D; o0 u) |
- });$ {3 p/ X8 l$ _+ A" M c
-
8 F( H4 p& Y7 R/ ]7 j - digitalWrite(2,0);
' T) m' Z; s7 N2 }9 o - mainAction();- l0 J6 T" W- d2 s" N! I
- if (digitalRead(0)){/ n! f. l4 M* F
- ESP.deepSleep(0);: Y- ~; d! C, b. ^
- } else {
0 b% |! e, }+ F: I! [6 Z - server.begin();
3 p6 @( H6 I0 r. A' K0 ` - }1 D3 Q, R8 D. F! n
- }
7 l7 n& C& n; [ L! M/ P0 \/ l - void loop() {3 P/ ]# l% m Z. A
- server.handleClient();
9 _- N; y/ {( A1 W! o& } - delay(1);
! z6 x0 B% p0 F+ D8 a" x" ]: u - }
V$ g3 o, M; \6 n7 P - String doGet(String url){# C4 `: _8 |; n! O5 o; h) f
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) x) x! w* G, g5 ~6 \% h4 H( m d - HTTPClient http;0 R4 y- ~3 C3 b/ S# }( o* x8 Z( f
- Serial.println("[HTTP] begin...");
4 Q- ?( j$ ?# I' u4 }/ e* K4 } - if (url.startsWith("https")) {
% U& U9 g# f5 \, K; h - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# Q# y$ p2 H. h& c
- } else {/ i, i( A2 P9 i" L: u
- http.begin(url);
/ w5 s, C$ x4 p* a/ m' y) N$ i - }
5 x* _$ R/ w9 B - Serial.println("[HTTP] GET..."); l! x8 W* u8 o8 e/ U
- int httpCode = http.GET();' v# {9 }( V( \! w& a1 p
- if (httpCode > 0) {8 F5 S3 q6 J% v+ G
- Serial.printf("[HTTP] code: %d\n", httpCode);; C* y0 M0 _# D
- if (httpCode == HTTP_CODE_OK) {
( x6 z \3 @/ J E6 p - String payload = http.getString();
! _) E; Z3 d; p5 I1 m @ - Serial.println(payload);
' F% {% o+ t$ t6 y1 F" P. M - Serial.print("\r\n");. R) k# r3 ~9 Z ?+ m: q/ @$ D( I6 _
- return payload;
+ V: l9 Q2 R+ z7 \3 b - }$ H4 C4 ]8 b0 o ?- O
- } else {
( j3 e! e, o; y i+ f( B - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 q ], O0 X# {& h; W6 m2 Q0 e0 Z - http.errorToString(httpCode).c_str());
7 U- |# C4 Y& Q7 j1 E P4 W# F: z - }
7 O" R5 d ]* U4 e. Z - http.end();" ?% z% N2 z Q
- return ""; x! q) [, B8 E! D/ E. R5 e7 Q7 v3 C
- }
1 O6 l* B/ g, `/ F4 g4 P: E - }
2 E' \) w# a6 Y1 Y# H - void mainAction() { v' m6 z- D/ i6 J5 }- X
- // 发送请求
/ t; ]8 c1 `$ s6 z- u0 _ - doGet("http://google.cn");
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