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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)# d4 m" H. D' k; h
- #include <ESP8266HTTPClient.h>
+ f/ w3 O ~9 L! e7 @ K7 h" k - #include <ESP8266WiFi.h>
# @ f" Z0 _/ n+ _0 n& l - #include <ESP8266WiFiMulti.h>
. @. e7 D) X3 L( E3 g - #include <ESP8266WebServer.h>
3 m9 B" \$ L Y3 a% \ - #include <arduino.h>
0 u# Y) e6 _. c - ESP8266WiFiMulti WiFiMulti;( P8 a1 H7 g5 S+ K4 D& B
- ESP8266WebServer server(80);) E( w! Y, T% y* D" a8 s
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 Z& {* a! g* [4 _
- ADC_MODE(ADC_VCC);
5 C4 l# U# S! U4 }9 K* x b0 } - void setup() {; q2 ]3 l+ c. _, I9 ]
- Serial.begin(115200);/ _, E4 ?- O6 v2 ^6 `- o- s a' r
- Serial.print("\r\n\n");
# y0 W$ V) y0 {2 u5 ?& Q' u - pinMode(2,OUTPUT);3 C, C% t$ s" d5 n& X' O
- // WIFI$ F9 y5 O" p. Y j
- WiFi.mode(WIFI_STA);
# F. n! @5 i: M - WiFi.hostname("Sparkle");
/ _6 u. H$ Z) H4 j - WiFiMulti.addAP("wifi ssid", "wifi password");% I' }3 {* [" e3 a5 F" V
- int tryNum = 15;
3 G" U" w# B8 d( U' _ - Serial.print("Connect WiFi");" e, }/ m/ n# U
- while (WiFiMulti.run() != WL_CONNECTED) {
( y( _3 R: \" w& A3 c - digitalWrite(2,0);+ e0 k. b, ~* n# Q' t% P8 Y. N# e$ T
- delay(200);
6 Q* y. C' c) Z6 L - digitalWrite(2,1);
) s. s+ r$ b: w" K - delay(300);
5 z7 b k. f/ D8 g/ ? - Serial.print(".");
& B8 C; A7 W* e" y! t - tryNum--;
0 d- S O4 z; l# T" T) Y, Q - if (tryNum == 0) {2 ?; Q) r6 h+ k8 j3 |& n
- // 1min7 _5 J8 a1 q! {4 D
- // ESP.deepSleep(60e6);/ a& d7 |+ ^ T: }5 M
- ESP.deepSleep(0);
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- }# `! P( M+ C4 {
- Serial.print("\r\n");
# y9 ~3 s! K% C9 Z0 e4 } - digitalWrite(2,1);
7 C J1 T0 ]. w& \; ~, V% p - Serial.print("IP address : ");5 }' d1 Q/ T: l0 Y, E" f
- Serial.println(WiFi.localIP());
% l& G* _+ ^7 s5 n u) e$ n% B+ r - server.on("/", HTTP_GET, [](){( d; Y2 `7 v, E& n
- server.sendHeader("Connection", "close");
" N; W% d4 C/ A* y( C+ U4 I - server.send(200, "text/html", serverIndex);
+ m; H e$ b9 W K- @( T! `: t - });
) n) L8 B; a. c- F7 R3 v% v - server.on("/update", HTTP_POST, [](){
( B9 k$ e) M/ [ - server.sendHeader("Connection", "close");
' _0 B' E, H# y x' F7 w6 G w - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# S) H% {. t" C( i6 K- `: Z9 `7 ?2 C) C
- ESP.restart();
" J! S: r. q! [! H9 A( G! H0 t - },[](){2 b; m& S; H* ?1 M* x
- HTTPUpload& upload = server.upload();
' {" b" w, ~5 a, n - if(upload.status == UPLOAD_FILE_START){8 H3 p* {& e+ z: L: k7 L s0 S
- Serial.setDebugOutput(true);* ~2 ~* v' ^" ?! J6 A. @
- Serial.printf("Update: %s\n", upload.filename.c_str());4 R0 N9 U, _( W# M
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: H' e) n9 }& Z; g) M% U - if(!Update.begin(maxSketchSpace)){% _. x$ N& L" V! K
- Update.printError(Serial);' Y' D! q/ f" C$ Z% c
- }
& g. c+ {, ~) L - } else if(upload.status == UPLOAD_FILE_WRITE){( h* _+ A- G1 R" u
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 L$ l8 P9 g! N, p. R4 ^
- Update.printError(Serial);
- ?% ^& e( k" j, Q) n* I - }7 x C* Z% }2 Q
- } else if(upload.status == UPLOAD_FILE_END){0 a- x, [" ^; C3 i8 ?
- if(Update.end(true)){( E& o' I' }/ Y3 a! Y; _9 l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; o+ r$ X. R+ k* L! G* ~/ w9 y
- } else {
; r8 {. V7 _/ b - Update.printError(Serial);) x. @8 B" i p: g
- }
9 Z5 I/ `9 B% @% h - Serial.setDebugOutput(false);# A; U* V1 i. B) V. y
- }5 V6 k7 }6 W3 Y
- yield();8 c- N' q4 j3 s' M* c4 M" [
- });
! }6 z: E! t( [8 x# C9 W) L+ x - 9 _0 M6 w7 |# e+ \9 q% B
- digitalWrite(2,0);7 l+ f: h6 W, ^4 N/ Z' ^$ @4 u p
- mainAction();0 Z1 g: b, v5 Q; V, F& T
- if (digitalRead(0)){
, Q! b; E: O) s1 P; e) T) K7 q+ l - ESP.deepSleep(0);
3 y/ K# ?4 l1 Z% V1 G - } else {
+ c8 a r+ y P' Y. _4 D - server.begin();
) {5 i. `4 i* Q4 w3 m - }& x R" O. `1 A# w" u; O
- }4 B8 n9 P0 r# D/ {( E1 Y: ^
- void loop() {
5 Y+ F Y/ K Q7 R - server.handleClient();) Y: L, R( @% V. O. T' C5 v
- delay(1);* P1 R* y q- h% w5 i
- }* q& n" K7 j0 w9 `: X9 b7 Z G. A
- String doGet(String url){
6 i6 V* x* U$ D- w# w& J - if ((WiFiMulti.run() == WL_CONNECTED)) {9 Y. ~9 [. a) k( X4 i
- HTTPClient http;1 ]) X1 F( `( K. s4 w
- Serial.println("[HTTP] begin...");- F8 t0 ^' Q- t+ Y+ k) y2 p
- if (url.startsWith("https")) {
% q; o- N7 l" B% h! a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
0 _; H, d" b. s" z5 a: Q - } else { j, ?8 _/ G2 E+ Q9 F
- http.begin(url);8 G# @. z6 ~, u9 a
- }
$ D( f u" p' Y1 w - Serial.println("[HTTP] GET...");
. M8 U9 h5 N+ E4 h9 ^ - int httpCode = http.GET();
t* F! v7 F0 W, o/ a - if (httpCode > 0) {
; d* X5 w a0 ]0 I5 M b - Serial.printf("[HTTP] code: %d\n", httpCode);
+ N* x( w6 w5 V; R9 C - if (httpCode == HTTP_CODE_OK) {" H, }: \- b6 a O1 u
- String payload = http.getString();
2 q( z( J0 E8 [, K, `0 ~ - Serial.println(payload);1 Z/ _* x' X- P7 t4 [. |
- Serial.print("\r\n");% v) E$ P# H( k" H9 f8 H) h( @ u
- return payload;- i' z0 M* v% i
- }1 g' ~9 e7 g0 c) q0 N; ]+ j
- } else {! e$ x4 G# q& [9 I9 G
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' ^ M0 B% }; K/ p4 U h3 o - http.errorToString(httpCode).c_str());
}# |/ V8 j4 S! u0 i - }) Z/ S' @. @$ {& w9 L
- http.end();
0 B$ {0 j" x: b1 d - return "";
- {' W& Z; H. S - }/ |3 e+ Y1 c+ f) u: K
- }# d# B& G2 G/ V0 Y& \/ _
- void mainAction() {
% H3 v0 I* ` [9 m - // 发送请求2 Y; V7 y4 ?$ T' z, Q
- doGet("http://google.cn");$ C0 \ a2 d4 R6 C6 U3 Y8 o8 m
- }
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