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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)$ Q) i- t7 H2 Z% M/ J; b& M
- #include <ESP8266HTTPClient.h>
% `; G+ k! B7 n - #include <ESP8266WiFi.h>, @. T9 q6 D5 c; d9 ^/ J
- #include <ESP8266WiFiMulti.h>( L- F, M1 F% v' n5 \( `! J) M5 F
- #include <ESP8266WebServer.h>
, i5 k Y7 r T0 k$ | - #include <arduino.h>
8 [+ w" S. t& i h6 ~& b3 B - ESP8266WiFiMulti WiFiMulti;
: F, K' j4 _/ G - ESP8266WebServer server(80);; W# H: G. s- m2 ~- f k) I$ E
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) v* ^3 `4 U# H* _$ E9 v3 P
- ADC_MODE(ADC_VCC);
0 d! `( d" S$ C2 [ - void setup() {: a! W: x; l! S" K7 h3 A
- Serial.begin(115200);' Q5 m4 A4 e) K( ], W9 x+ @' U0 k0 ~
- Serial.print("\r\n\n");
/ C: i" ^0 A- B1 m" ] - pinMode(2,OUTPUT);
Y6 z' Z7 U1 l. A8 W m - // WIFI
8 ~8 C: X* ]2 E) S3 Z& p" u - WiFi.mode(WIFI_STA);* Z/ w& H6 ] N# e& z) a, i
- WiFi.hostname("Sparkle");
: I$ R, k, {8 U - WiFiMulti.addAP("wifi ssid", "wifi password");
+ }' g3 {% r, [0 @" I+ P7 w9 w. } - int tryNum = 15;! K9 D1 r: ?$ t; h9 a" @6 f
- Serial.print("Connect WiFi");
0 B: v3 b7 l0 r - while (WiFiMulti.run() != WL_CONNECTED) {
L5 J% Y( |4 K' v' r6 Z - digitalWrite(2,0);
2 K9 i! N W! C. S8 M% Q5 j - delay(200);. l3 z) ?; D$ H/ t5 w
- digitalWrite(2,1);
/ ~0 v$ r b4 O# v - delay(300);
+ B& o% m, x/ y - Serial.print(".");
+ B) Y8 S7 `/ d. p) R2 b$ z7 ? - tryNum--;
' `2 w3 Z5 B- F - if (tryNum == 0) {
+ r2 ~% U) o8 D* K0 A$ z" ]$ n" Q - // 1min0 h' S; B) t( q, M" u
- // ESP.deepSleep(60e6);. L: Z4 {1 |0 \+ a
- ESP.deepSleep(0);
/ o' I6 ^+ C/ f8 F. g. S - }
, z* ~$ o0 o3 w' ^: k) u, _* t" @ - }- z+ D7 z7 }) J1 K* P' d, }: g
- Serial.print("\r\n");3 O$ `; q! ]. ^7 f7 k W* m, V
- digitalWrite(2,1);% G( g/ J! | o; C
- Serial.print("IP address : ");
& Y3 n, Z- {* q7 O - Serial.println(WiFi.localIP());
( N) ^. X( j8 Q3 B - server.on("/", HTTP_GET, [](){
/ Y) @& y$ q$ [) f* | - server.sendHeader("Connection", "close");
" I1 v. N/ I% u2 u- G - server.send(200, "text/html", serverIndex);
" A# i' O* i9 J" E+ z1 }/ ~6 l% F - });5 a5 H5 ^( {2 T$ [' _
- server.on("/update", HTTP_POST, [](){
* h# q0 P+ p) a* e2 v" c5 a - server.sendHeader("Connection", "close");
/ @. y8 A a" ^0 _ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 o) y; N* D, t+ V, f) `
- ESP.restart();
. i) E k5 Z( K+ e9 G$ v$ G0 M - },[](){$ ^, M/ O' f" ~8 Y4 m/ M
- HTTPUpload& upload = server.upload();% E& i- ~8 B2 \% Y
- if(upload.status == UPLOAD_FILE_START){4 H# ~7 y; L. ?) ^' u
- Serial.setDebugOutput(true);5 ], f3 t! l. s* k
- Serial.printf("Update: %s\n", upload.filename.c_str());' Y$ v8 L. q) |$ L4 X
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ J# L$ R1 j: @2 [* v1 O& J - if(!Update.begin(maxSketchSpace)){
9 k8 m8 Z6 O3 {6 m# E) L9 u" q6 \ - Update.printError(Serial);
; e: m& Y0 \& I2 U" P( L - }" ^! p/ q, |7 Z6 F
- } else if(upload.status == UPLOAD_FILE_WRITE){: _6 ~5 Y, n& [1 r$ a- ` h& @
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){4 B5 o7 b5 N5 Q' k9 }
- Update.printError(Serial);
: F @& E7 I- Z# l; B- S6 O/ n - }
. l, c3 y5 m" s/ `; U+ } - } else if(upload.status == UPLOAD_FILE_END){: y8 J6 t/ H! J9 p/ {! A
- if(Update.end(true)){( `& W2 s8 ~1 r: m3 I
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- t8 g) H( ]' Y3 y
- } else {) m0 X4 j! f' p5 L8 q
- Update.printError(Serial);
3 \# L% J1 h3 |; V3 z - }
4 j+ w, z- v+ p$ G - Serial.setDebugOutput(false);
- L$ _ m- b# G" d: I - }2 \: ~, E2 c2 }+ |- _
- yield();( W- Z' ^. S& W% l" [; x
- });
. E( Y; d# I3 E$ [ - , {6 [+ r( B3 B9 ^- t" o+ f0 t
- digitalWrite(2,0);
7 K" P$ H! v5 @ - mainAction();: i8 A; b. e- b. D6 Z7 y) {7 `
- if (digitalRead(0)){
7 t1 @1 n5 f4 P) N - ESP.deepSleep(0);; A6 X+ b; a4 Q, G
- } else {
* {7 {8 N4 F* l3 S/ S) o' K - server.begin();5 g3 f4 ~1 r" L* l; T
- }1 P4 }- [2 y! o' H+ F# J$ P$ t9 o
- }9 F& J0 S A! ]+ |" C2 \
- void loop() {* N& `4 s9 A- F$ g
- server.handleClient();
! y1 o3 Y- z; M4 A9 U" Q - delay(1);
$ M& [- F P( k- A6 k: s" N - }/ N9 [ n8 X, U8 Y9 _ ]6 `* L
- String doGet(String url){
1 {* V$ c2 T6 d, L. @8 c# l& A/ T/ W6 P - if ((WiFiMulti.run() == WL_CONNECTED)) {' X3 @2 s" g% V6 d
- HTTPClient http;" h5 v+ K% d# X! a6 d9 k& W4 w7 i
- Serial.println("[HTTP] begin...");0 L8 ]) h; H- | h. |
- if (url.startsWith("https")) {1 b5 E, M" O6 m3 Z3 B
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");* ^1 `" }9 _& M8 e/ d
- } else {
7 U, R4 q |/ U - http.begin(url);4 }1 A: _! w ^# g4 `
- }
9 m, x8 Z0 _9 G( Z. H- c( _& T0 [ - Serial.println("[HTTP] GET...");
0 {. q$ W, B1 O - int httpCode = http.GET();9 V4 O0 j8 i n
- if (httpCode > 0) {+ x) C' ^; ], ]' H
- Serial.printf("[HTTP] code: %d\n", httpCode);* q7 @ o% T9 J# R, g
- if (httpCode == HTTP_CODE_OK) {5 Z$ s$ H' {9 J) n) A4 ]
- String payload = http.getString();2 B- B. Y O3 P( b
- Serial.println(payload);
, r. G, \8 J' @% \8 @ - Serial.print("\r\n");4 n+ Q, s9 _$ X( E* P* \ {
- return payload;
! R: [6 M( j/ L# r& O; G - }
! k) R" l& P/ Z2 O- L* F - } else {2 J: `8 B2 H2 w
- Serial.printf("[HTTP] GET... failed, error: %s\n",
% N6 E U0 O9 ~/ S9 `3 s. {" Y8 v - http.errorToString(httpCode).c_str());
; T& i( P: X+ u - }! c& N9 b/ f. _% e- `
- http.end();
4 K2 Q/ p, W: q. @ - return "";
: `2 O: j8 i% T* V3 } - }
4 f5 t" t- ?$ F - }
: x# K, {0 H1 f) m% q" U - void mainAction() {
' m, M" l: F8 w7 j F* ~+ h - // 发送请求
9 H' A( T5 i- b$ c n& `; j4 W - doGet("http://google.cn");
* K W; V5 x+ _4 h - }) P! @! p) i1 ?. ~( @
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