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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)& Y9 U5 S6 _! F4 c
- #include <ESP8266HTTPClient.h>0 O* A4 o) D6 Y' v. E
- #include <ESP8266WiFi.h>
- H- _7 J. {! R. H - #include <ESP8266WiFiMulti.h>
) P3 \$ L7 L% ^0 a/ z - #include <ESP8266WebServer.h> @6 f# D3 |2 k5 r. V
- #include <arduino.h>! x/ s2 h; v: K/ U t
- ESP8266WiFiMulti WiFiMulti;' ^# w5 V9 D6 p/ }' }3 b
- ESP8266WebServer server(80);
5 z2 A4 ]8 X5 L& V' X7 z, I8 H/ V - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 Z! f* @" Q: |. D+ ]9 t
- ADC_MODE(ADC_VCC);
) s! x1 a. P6 ~' @0 {% k - void setup() {
$ E g! X I2 N7 A - Serial.begin(115200);2 y' J9 S- y% q. i
- Serial.print("\r\n\n"); o' y, d% R8 b! B5 Q
- pinMode(2,OUTPUT);
* H/ E) T4 F: [' h: [% _7 a+ O* @% s - // WIFI% J; \3 P- t$ v* T
- WiFi.mode(WIFI_STA);7 s5 \* E/ g6 C" O8 A2 O% t
- WiFi.hostname("Sparkle");
0 j; ^ `2 H- M4 w2 N2 M+ t - WiFiMulti.addAP("wifi ssid", "wifi password");
# S; [) y. H5 J- V5 U - int tryNum = 15;
5 `7 U5 Z! J" I' T/ A- t; Z! a - Serial.print("Connect WiFi"); n4 k6 x! i0 N( X. q, n9 X
- while (WiFiMulti.run() != WL_CONNECTED) {
1 N% A- n% C. ] - digitalWrite(2,0);) w( ^+ R# L( C+ w5 P
- delay(200);- z9 {3 w) S& S) ^, i
- digitalWrite(2,1);, s" w) B, \5 C" S" W9 \
- delay(300);
8 U+ B8 W& N; I& e8 t0 R - Serial.print(".");( m1 v3 B% S4 n0 ?5 H8 J
- tryNum--;. O! C7 _& v1 t S- Z, C1 c9 K1 A% ?4 @
- if (tryNum == 0) {
5 s0 ~/ f5 K% l - // 1min5 b C* t4 f+ V7 x' j2 q' s
- // ESP.deepSleep(60e6);" k. b5 z0 a, E$ Y# s' n! Y
- ESP.deepSleep(0);
9 V1 z6 D# f+ Q" b; ~! x4 d d - }
) u* Z3 ^# g7 a- X5 j: X! r - }
; q6 N% @0 r7 Y0 z. R - Serial.print("\r\n");: Z3 p& c5 N9 t6 L2 H3 W
- digitalWrite(2,1);$ v! x1 M M: m/ A: Z. l
- Serial.print("IP address : ");
" m5 s b0 h7 }9 \6 ~ - Serial.println(WiFi.localIP());
6 c* g9 G% g' ?, j3 X2 t# Z' @6 L - server.on("/", HTTP_GET, [](){3 f+ A; G Z1 H% @8 |
- server.sendHeader("Connection", "close");
7 n) [: n+ r3 q0 Y k4 C# G - server.send(200, "text/html", serverIndex);( Q. `' s" U0 L( K. J1 R
- });$ U: w: i% g( {+ K$ F2 G, d
- server.on("/update", HTTP_POST, [](){
6 `& t2 A! T7 q6 M0 w - server.sendHeader("Connection", "close");
0 ^* F. A( C. \; k7 o/ S - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 }: d3 t* O1 _/ ^* y7 [6 } - ESP.restart();/ B( i. c" m: _! ~
- },[](){
4 y* ^% \2 v) o3 p. c - HTTPUpload& upload = server.upload();+ ]/ Z, M! w2 a4 B
- if(upload.status == UPLOAD_FILE_START){ c/ Q. k( F9 d+ V. b
- Serial.setDebugOutput(true);
# L$ P! J( _6 { - Serial.printf("Update: %s\n", upload.filename.c_str());/ b; l+ F/ C1 B3 V1 {0 e* W/ q$ w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 z7 r! F4 @) F - if(!Update.begin(maxSketchSpace)){
, b2 b9 D: F5 q; C* @* m - Update.printError(Serial);& k2 [8 n2 ~ t V# y
- }" ?% T. L% @9 d. i; G% D' Q9 F( t# ~
- } else if(upload.status == UPLOAD_FILE_WRITE){% |. c3 k7 n+ @4 I$ g- J
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. k2 @# n o+ ~$ V0 u. H+ o j
- Update.printError(Serial);
3 Q1 N( ~. M0 B7 H* W - }, P5 ?5 |- R/ |: I8 A
- } else if(upload.status == UPLOAD_FILE_END){
, K6 ~+ w; ~% `5 X. e - if(Update.end(true)){
: L# \; j- U e6 Y/ r5 g a" ^ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 i. s) s9 B1 f/ d
- } else {
5 U/ @1 y: m* K9 y. V - Update.printError(Serial);
% q: s1 x2 o# d8 I - }
6 r ? E+ @% [8 @: m - Serial.setDebugOutput(false);
8 ^! e1 v) f" P8 \" y' p - }. }6 b" q T1 I0 e5 B
- yield();! E1 T6 ~6 u4 T& b; J
- });$ k% N+ E6 s' i; v% ~6 A, j
- ) T7 k3 |9 e* @0 v+ r0 S% `3 l* `6 C. s
- digitalWrite(2,0);
2 w' W: H3 s6 e2 [ Z* l6 m- W - mainAction();, }9 V# V1 s. p* c8 H' m7 S4 L
- if (digitalRead(0)){
& }1 B, E/ P7 C: ~) Q - ESP.deepSleep(0);
6 ^0 Y% f+ R6 c( M# l6 \ - } else {+ E4 ?* c5 o! Z
- server.begin();
$ L, \; n" U' f' g* r) C - }
8 R% M) o7 J0 Q6 d4 z8 A1 N - }: e8 k3 C. J$ X8 y" L
- void loop() {2 f$ \9 |! V2 J3 r
- server.handleClient();, n- _+ L' P2 E* u
- delay(1);+ U) Q! S; i$ f( @
- }4 V& a% X' q6 H! A# r
- String doGet(String url){& u+ H* H1 C' h7 y
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 G( [" a% Q, f+ F/ ~
- HTTPClient http;
, d% J/ h0 `& l* O - Serial.println("[HTTP] begin...");3 V6 A1 u% ]3 m/ B4 N3 [
- if (url.startsWith("https")) {
8 v A0 \: [* ]8 @: B - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" K' W# e# ]( U& u4 S1 p
- } else {
% \/ l/ @* Z0 l5 o$ a$ m1 l ` - http.begin(url);
) Y- k7 O$ ^0 b- C8 C9 I - }8 I4 F* z; p: H8 J: U/ t3 z
- Serial.println("[HTTP] GET...");
; _# E$ k! t+ o+ L - int httpCode = http.GET();- Y" m, x& X. [3 ]- l6 c! e
- if (httpCode > 0) {) O: n2 E* Z) W" I3 n# S ]
- Serial.printf("[HTTP] code: %d\n", httpCode);% T8 Y; i0 `5 w" H% u, ?% m
- if (httpCode == HTTP_CODE_OK) {8 D% O# R/ H% ]5 O ^
- String payload = http.getString();/ t6 {7 D* \# M1 f1 t9 G; a6 q
- Serial.println(payload);
! S) T; x- [) n0 z9 l1 f6 D g" L - Serial.print("\r\n");8 e5 _8 B3 Z; e; U2 n/ r7 u+ u
- return payload;
9 E! O! e* E* c' L9 s+ f - }
) ~ ?' f1 t0 }5 S ? - } else {
v& R: v) ?4 u0 j - Serial.printf("[HTTP] GET... failed, error: %s\n",( p7 u- H: @+ V; o. M0 e* Q
- http.errorToString(httpCode).c_str());$ b3 u2 @( \9 ^5 p
- }4 e f4 [4 Q7 o+ Y
- http.end();! \9 R7 K3 }; H7 e/ u+ a
- return "";; L6 D* h, p1 s: x& I' e2 c
- }% t- G' u* n3 c
- }
2 ^8 y3 s- ?8 v( ` - void mainAction() {
' A2 I& w: h3 T - // 发送请求
) A. {% B1 ~3 ?4 K# U/ S& a - doGet("http://google.cn");0 V. Z& d5 {2 u, ^4 g% t8 e
- }6 E& q6 T( h1 g9 H+ |5 b
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