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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 l2 i7 T5 a- #include <ESP8266HTTPClient.h>& _9 m: C0 l- u! o
- #include <ESP8266WiFi.h>" K9 Q+ ~+ X; l1 W$ T* J5 E- A4 \+ `; K
- #include <ESP8266WiFiMulti.h>
, T& ?; V6 I: o/ y - #include <ESP8266WebServer.h>/ c* y0 F H; S/ I; l
- #include <arduino.h>
% U- z1 s! D; `% N3 z7 ], I - ESP8266WiFiMulti WiFiMulti;
7 C) s4 y* Y: H3 }4 Q: s( O - ESP8266WebServer server(80);1 F7 x$ z& y) v1 ~8 t0 b
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 V7 x3 |% g4 H7 E r
- ADC_MODE(ADC_VCC);/ q# L7 m) E) x
- void setup() {
" q3 D# s3 e( G9 d, B4 w7 y( W; R0 b - Serial.begin(115200);" U G1 A: E8 j# F, k$ N
- Serial.print("\r\n\n");9 J5 k7 r# w2 B0 a# S( \/ N
- pinMode(2,OUTPUT);+ m( p8 v- ?. i+ M" j
- // WIFI
# H& Q) j: ~! |( M - WiFi.mode(WIFI_STA);8 ~3 K& z1 X4 e* y6 o" u
- WiFi.hostname("Sparkle");8 X" J9 Q. |4 |0 a# Y
- WiFiMulti.addAP("wifi ssid", "wifi password");
3 {9 e2 S7 K1 T8 Z5 w) Q$ {) y - int tryNum = 15;
A; h5 b) c5 t0 G- n& [1 g2 p - Serial.print("Connect WiFi");7 Q) }. |7 i" I0 @, ^9 Y; `1 d, Y
- while (WiFiMulti.run() != WL_CONNECTED) {
2 J" D5 I" B' S& s* p$ d! i% c! l - digitalWrite(2,0);
3 i* c1 A. b, b' L' @2 M; o - delay(200);) y4 d9 n: w e; U
- digitalWrite(2,1);4 ^" }, d- I; G" `+ Z* E
- delay(300);* d- I4 m( W* Q& l) X
- Serial.print(".");/ f- F9 g2 h, F& r6 l
- tryNum--;' [$ A) L Z1 U; c2 z
- if (tryNum == 0) {" K$ p3 ~* }5 y& q9 q
- // 1min
6 d' X! w' Y* r ~" g - // ESP.deepSleep(60e6);7 [+ ?. A% C' j% o. f; c3 o
- ESP.deepSleep(0);7 ?% p3 B, V+ L$ d6 u
- }
5 t" x8 C1 `( D2 D, Y - }7 E! G& \+ y! j' S6 z2 `4 b
- Serial.print("\r\n");' I6 T# \) j- \
- digitalWrite(2,1);
0 H' ]/ p$ a) ^5 ^" B R* k - Serial.print("IP address : ");
3 M$ A5 B# }* _( e* C: @ - Serial.println(WiFi.localIP());. g7 p3 `, S5 v# N2 j
- server.on("/", HTTP_GET, [](){
% o- {8 Y9 K) D4 {' r- M& V - server.sendHeader("Connection", "close");6 U% Z$ D+ s( z9 h8 P
- server.send(200, "text/html", serverIndex);
! W |! { ~+ W9 a - });
. X( K8 x, s( b R( ]" Z - server.on("/update", HTTP_POST, [](){) V3 N* s4 C6 W# A
- server.sendHeader("Connection", "close");
8 \+ ~! Y" L5 F9 ^$ H6 P - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 p9 a* Q" l* h w! _7 M/ }7 p2 _' ~ - ESP.restart();+ J) v5 G& Q' C$ N& D8 ]9 I
- },[](){ U# k7 v1 B0 }5 @
- HTTPUpload& upload = server.upload();2 Q$ s1 F8 k2 b4 b2 v+ p
- if(upload.status == UPLOAD_FILE_START){
0 O: q% s2 @9 O/ [$ @ - Serial.setDebugOutput(true);) K5 ?- o9 W0 c$ D' G7 S7 O" |
- Serial.printf("Update: %s\n", upload.filename.c_str());
) ^; y' n/ U# y) ]. E7 v9 [, R6 W% ^ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 j. z% [2 Q) Y! I - if(!Update.begin(maxSketchSpace)){
[' f0 u" s. }0 M9 h2 z - Update.printError(Serial);
! }* Q& a5 |. T# g% E- R& r - }
& C3 {( ?7 i; r, e" v8 w$ N - } else if(upload.status == UPLOAD_FILE_WRITE){/ x9 ~$ M: d" C l: h$ C' U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! K) j# T [& i$ Y* d1 u' S0 j
- Update.printError(Serial);
! u) F) X6 w; x6 B. L - }
; G* U* m% b6 s0 P: m - } else if(upload.status == UPLOAD_FILE_END){
% X) L" q2 q: ?1 x8 v- f$ @) T - if(Update.end(true)){
! k9 R- F$ c* R6 o* Z% Q) }$ ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, N: r! A5 V+ h2 y0 ?. ? - } else {
) I2 Z8 L3 U% w( k3 e( U, K3 m, ]8 L - Update.printError(Serial);
' W V9 O4 E0 f; g9 d+ W - }5 V) A1 `6 f/ s5 @# T
- Serial.setDebugOutput(false);: ~' H+ w9 [& d- i0 C/ `7 M
- }
5 P+ Z+ r; A: M - yield();, I4 N } \' M$ V- Q9 b
- });
# A) J, G8 A& C# X0 r8 H - ( m, j; @" a; y l/ q5 L* z3 x$ J! j) }
- digitalWrite(2,0);: M( y5 @0 e. G: C
- mainAction();+ A4 {" C1 C9 n& j9 k
- if (digitalRead(0)){* F7 r! Q6 J( Q- n8 @
- ESP.deepSleep(0);
6 O( r* m1 J- k0 i - } else {, P9 P; Q F8 k) ^
- server.begin();# F# q' Y- P0 f4 u
- }$ Q1 o6 f6 q7 M$ E5 m
- }
0 ?- V2 C9 n( x) \% ^& ?; o* Z) l( R - void loop() {
9 r P R9 z! | - server.handleClient();
( }( W9 t: ^) ^, L- t - delay(1);+ Z: V' Z4 w& h h$ C
- }
{' z! [! a( t0 a; C - String doGet(String url){
/ h3 ^0 l4 s8 K& ?- D* h - if ((WiFiMulti.run() == WL_CONNECTED)) {4 h3 j$ g7 {7 b3 _" }1 N Y- F3 h+ H
- HTTPClient http;
, B& T# X5 [' B D, a% M) q - Serial.println("[HTTP] begin...");3 I4 s0 \. M/ u- K$ F, l
- if (url.startsWith("https")) {( B+ g# y6 e6 b: r z
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) i: o! |: D! ~+ Q I9 b - } else {. h3 h8 F& _6 J' V
- http.begin(url);
. e6 \& a( Z$ P2 G' {3 ? D/ F7 U. A - }/ s2 C- K N0 ~. v
- Serial.println("[HTTP] GET...");% X5 r( K" s! e2 h, |
- int httpCode = http.GET(); @/ k% Y5 m5 c+ i
- if (httpCode > 0) {
& z/ a& W7 J' X( Q, Q - Serial.printf("[HTTP] code: %d\n", httpCode);+ U5 _: r2 r: \8 x# N9 q
- if (httpCode == HTTP_CODE_OK) {
7 l/ ?' ^( I8 ?! y; P) j - String payload = http.getString();/ h/ M+ }2 Y/ c8 P( \ V
- Serial.println(payload);
" Q/ z/ M0 M! l; @ - Serial.print("\r\n");
$ x: N0 ^& J8 y( j1 [ - return payload;5 ?# e8 a" n f- U
- }
: C" |- m* {' y1 @# z - } else {
3 G5 b2 s2 N3 ]5 W d - Serial.printf("[HTTP] GET... failed, error: %s\n",
/ P% {5 K2 m9 `+ Z d - http.errorToString(httpCode).c_str());
" f+ ~4 H/ o' Y# R9 l# w4 | - }* p$ N( G" v4 o
- http.end();
2 h0 S' n! X, w; G - return "";) h: m* n3 c2 Q6 s+ T | ^
- }
! L! c; ]; Q: g7 o& h. |/ { - }
) z: K F' S& k( k1 V2 B8 C - void mainAction() {0 f5 I% I7 l9 @, ^; J) k* N7 m
- // 发送请求, Z1 {# y, S; I
- doGet("http://google.cn");
$ w4 S6 g4 }9 } C4 S. }, W - }1 r6 M% |# r, a% Q4 E; f h
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