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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); z$ C( X2 u1 {- r0 W
- #include <ESP8266HTTPClient.h>
# D+ T4 N% z0 a4 Z/ \0 y4 h - #include <ESP8266WiFi.h>" ~3 M/ s! O" P0 `4 { ?; Q
- #include <ESP8266WiFiMulti.h>* P1 v: P- |4 d/ @" J' L
- #include <ESP8266WebServer.h>
' y3 D Z0 h! A: }7 u3 x - #include <arduino.h>) r# g; e+ n1 @6 N9 J
- ESP8266WiFiMulti WiFiMulti;
. a: z' v5 a# C - ESP8266WebServer server(80);
) ^ U( x! S8 n - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) |4 g W! c6 f
- ADC_MODE(ADC_VCC);3 A1 n) L0 e8 V% N$ M
- void setup() {! t6 d1 y4 T0 U
- Serial.begin(115200);0 {! O2 g+ g j$ o& K
- Serial.print("\r\n\n");
% q7 D- D' y# s7 t. H& A$ I! W5 C - pinMode(2,OUTPUT);
" B; A% P# ?# B! V) z - // WIFI
* S- B% C' c( ^0 y+ B& @ - WiFi.mode(WIFI_STA);
, Z$ ]) F. Z0 t - WiFi.hostname("Sparkle");0 A7 r( [# [& u: v
- WiFiMulti.addAP("wifi ssid", "wifi password");! z1 A6 Y; Y3 `9 s- O
- int tryNum = 15;0 e4 S: f) o* H) w; N
- Serial.print("Connect WiFi");
) q" C Z/ {. z2 h - while (WiFiMulti.run() != WL_CONNECTED) {" {. Y" r9 j4 N4 |. A& ^
- digitalWrite(2,0);
" {! m) h- r9 D* I( M - delay(200);
( O& m, l* d3 \ - digitalWrite(2,1);, U# ]: a$ k+ |9 s' m3 p3 r
- delay(300);7 [ x( U) W, W
- Serial.print(".");
) K( W1 ]' D( f! l! R - tryNum--;
d1 [' ~: @5 y: ~6 z - if (tryNum == 0) {
v, \) ]1 P# r F. | - // 1min& X: Q9 t+ m$ x; v* |
- // ESP.deepSleep(60e6);; H2 I3 u' M! c. D A
- ESP.deepSleep(0);
; S" a- ]6 b& w! v! L5 t - }
; N3 t# h h" u8 I - }
+ x, W* ?9 T d, r - Serial.print("\r\n");) ~2 Z8 o: U0 X7 {. P/ { w2 s3 p
- digitalWrite(2,1);4 _9 ?! @/ N. ^. ]3 _1 K
- Serial.print("IP address : ");
7 t, Z: e8 T. O% X2 } - Serial.println(WiFi.localIP());
3 p! j) N" o: E( D/ i% Q - server.on("/", HTTP_GET, [](){
* |" R7 d6 s9 B) N - server.sendHeader("Connection", "close");( ?5 S/ g% J2 f' k& P
- server.send(200, "text/html", serverIndex);
, F1 X. Q5 l+ H- L$ y: ^" Y - });) |. e+ n4 g, T& h5 V D; X; F
- server.on("/update", HTTP_POST, [](){
1 ]6 m w/ \3 O3 ? - server.sendHeader("Connection", "close");
' Q# y/ Y3 R% k# p: } - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 b' G P' \% t) I0 t# z - ESP.restart();
% S. G, x+ y: i - },[](){
$ ^5 s. ?0 Z d: R2 H. j - HTTPUpload& upload = server.upload();( O6 p' @- z: N) M0 @5 I
- if(upload.status == UPLOAD_FILE_START){) e2 W4 f8 X: B A2 S; ?
- Serial.setDebugOutput(true);( C% z& e* s6 h' U& @% D
- Serial.printf("Update: %s\n", upload.filename.c_str());
U% Z g5 D$ S6 p- _ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, B3 E1 V, d8 R& H* L - if(!Update.begin(maxSketchSpace)){6 s8 {" h9 o1 T, J- y) H7 ]
- Update.printError(Serial);7 i8 J) F; X) \9 u! s5 z
- }/ L2 t! `6 c3 M# B& R- x9 e
- } else if(upload.status == UPLOAD_FILE_WRITE){( P9 F$ u! f) u: h, L1 n5 `
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) W' ~# M& o* Z! d
- Update.printError(Serial);! p) `# f: D: ~
- }+ V8 g# {( W3 F, e. i! F
- } else if(upload.status == UPLOAD_FILE_END){
, p# S& c/ w, W( _8 y. h) x4 H - if(Update.end(true)){1 i0 H/ D/ Q, r; H
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 f7 F3 h4 x1 J- E - } else {2 w- m) {$ U1 j" T! q6 ~
- Update.printError(Serial);
' R4 W) E: R w/ N - }
. w# b3 u9 l' K# Z! B: b - Serial.setDebugOutput(false);
$ P. y0 K( G0 K+ ^7 i M5 k - }
. `" o% {9 c$ C2 t - yield();6 N1 Q0 Z# f* j4 @ u* A- w
- });
0 N, c4 A- z6 B" J; N$ k* W: o/ \ -
- u2 a6 }2 D+ t# u( e% k( ~6 E - digitalWrite(2,0);- U0 M, w3 l4 C; Z; K' e, P! O
- mainAction();
* H5 a$ \) r: f. l2 h/ ] - if (digitalRead(0)){
# f4 m( ]( R- e' z - ESP.deepSleep(0);9 ]) o: m' q+ ~1 a# A8 N
- } else {2 \6 V; V5 {9 @, a; s
- server.begin();
& `/ G5 u6 ~0 w. @/ v8 C4 o( G - }+ W: U6 j6 `! @- K4 e
- }
5 O$ O/ @# J7 a7 P2 e - void loop() {
! |4 K% w* }& c( J% n0 P( w - server.handleClient();
& p) O: |6 |7 R. z; ~ - delay(1);' k2 P) d7 X; q: [( d! j& y, H
- }$ u5 \1 }* _) v4 w S' b4 N4 ?5 q
- String doGet(String url){
% ` H, ^: i+ X - if ((WiFiMulti.run() == WL_CONNECTED)) {
( v, ~$ I8 W6 A - HTTPClient http;
3 }, o' H5 I. a+ B - Serial.println("[HTTP] begin...");
! w; D4 r" h0 w0 `) S4 m - if (url.startsWith("https")) {. `/ P0 f! b" i
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 a, k% ~) V! z/ l' F! Q5 v
- } else {4 ~) `2 g0 ]- h3 r: `
- http.begin(url);
+ A( f7 g" {! C: J - }
; i, p5 g& @8 {* F$ R2 b - Serial.println("[HTTP] GET...");, T! B J) V) r# ~! h: y( R/ C \
- int httpCode = http.GET();
# D3 ^+ Q7 \0 n8 V; q - if (httpCode > 0) {8 b3 Q, N* j6 Z5 B8 X" w* y
- Serial.printf("[HTTP] code: %d\n", httpCode);. \" J8 T& U0 R
- if (httpCode == HTTP_CODE_OK) {
n# U& K& T4 ^6 R! E - String payload = http.getString();4 @# l0 }' ?" [1 B; E0 P
- Serial.println(payload);
6 B, U# ~7 J5 m1 p - Serial.print("\r\n");9 `; b0 H. e% w0 c* l
- return payload;- ^- b4 @0 d0 T
- }
0 w9 y% n% j, E0 ]6 R. v - } else {
" E. k, F e) \2 ]# n - Serial.printf("[HTTP] GET... failed, error: %s\n",: q! a) j+ t* @, m3 L3 |+ T
- http.errorToString(httpCode).c_str());
$ Z: k6 [ j1 ^% x" ~1 X - }
# H5 p- _+ Y* c# F1 H6 S3 V: C2 T - http.end();0 e4 k6 u4 \+ o* ~
- return "";
0 c1 I7 @' m% V* V6 H - }' ~" J: M- E8 O7 K% B: x# p
- }
7 ~% O A4 ~' f+ Z& y - void mainAction() {" c+ |7 T- h/ ^8 e ?$ u
- // 发送请求; L0 X$ i6 _9 G" Q, d% ~
- doGet("http://google.cn");
+ k g9 P, V2 Y5 b9 I - }
I1 j6 d# f% ^* s
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