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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$ z& |% R% A% e' n; t
- #include <ESP8266HTTPClient.h>
+ `4 A* F$ Q! S+ M - #include <ESP8266WiFi.h>
; c+ i4 W' a& t - #include <ESP8266WiFiMulti.h>
. o5 r: a+ Z4 O) i3 ]8 } - #include <ESP8266WebServer.h>
2 N* @# D+ H0 S+ x4 |2 V, Q - #include <arduino.h>
. n0 |' B# V# w' L! b, g - ESP8266WiFiMulti WiFiMulti;
% |! x' t) L0 h H- [ - ESP8266WebServer server(80);* \ o7 y- z% s5 a( ~; _" b
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: C" {' v% g! m) K5 U3 v - ADC_MODE(ADC_VCC);: P* L2 I8 |- q y8 a2 y J
- void setup() {
9 a6 d. l; F4 L - Serial.begin(115200);3 _% E% A1 a( k3 Y1 I; M6 \, D3 h
- Serial.print("\r\n\n");
- S5 {6 X ]. z" O0 } - pinMode(2,OUTPUT);! H; E! }6 ^" K6 }% `
- // WIFI
2 b$ _" s) w8 ?6 z+ M - WiFi.mode(WIFI_STA);
* b& M, I+ P0 e' @1 { - WiFi.hostname("Sparkle");
! W# P8 ]# p3 T- E, o - WiFiMulti.addAP("wifi ssid", "wifi password");
0 p, n( k1 d' Y3 X( b! u - int tryNum = 15;* u; D- T( R$ T1 U3 h
- Serial.print("Connect WiFi");* m0 u3 |2 c" x: Z: E' E" _
- while (WiFiMulti.run() != WL_CONNECTED) {
$ e% i( ~+ O& I" C# { - digitalWrite(2,0);8 ~ x, Q' _! c
- delay(200);
/ ^7 D/ k( ]5 y8 v9 U% p- e - digitalWrite(2,1);
# e5 e, P% x7 \7 T1 K5 _ - delay(300);8 ^6 j+ U, E H& ^ [9 p( ]
- Serial.print(".");
! T& n. e! ]& @" N9 q - tryNum--;) H$ Z5 v0 b) b& v4 {* O" g4 h
- if (tryNum == 0) {$ l* K- Y0 k4 u$ z/ Z+ z) k
- // 1min7 h; N O* L+ S5 D4 g q9 T5 O' C
- // ESP.deepSleep(60e6);
9 Z2 ?% p6 Q8 V2 R1 k9 y9 L3 ^& ]4 C - ESP.deepSleep(0);3 `9 ]7 g* R' v: q. T6 B
- }
: Z: i3 f# m; w) f S1 s# U+ ] - }' D2 G/ c# P6 m, `! q0 L1 f
- Serial.print("\r\n");8 s. ~8 O( ~$ Z# Y/ G* s! t" J# d
- digitalWrite(2,1);
0 c# Y( I+ J# q, X - Serial.print("IP address : ");! J8 _( o$ \( F; H- P# d: Z4 O2 l
- Serial.println(WiFi.localIP());, q; {# c: t& n# d
- server.on("/", HTTP_GET, [](){
5 c) `% i/ V8 G' ~ - server.sendHeader("Connection", "close");% b: d2 Q$ {7 U+ u# _5 o
- server.send(200, "text/html", serverIndex);! T2 J8 Y* K( ]
- });
, T# K' k+ \* d$ z& @8 Z - server.on("/update", HTTP_POST, [](){, D# [# ~: h3 ^0 |) o4 q+ z
- server.sendHeader("Connection", "close");
: i( r Y3 ^5 R; h - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! k9 U1 W5 B/ S V u7 t
- ESP.restart();
) `! h# w2 ]' D0 W2 k - },[](){) ?6 ^9 Y! ^, S% b3 n, Z2 F
- HTTPUpload& upload = server.upload();
+ z* H( q6 M1 T4 E - if(upload.status == UPLOAD_FILE_START){
+ I7 s& f7 h0 d" F - Serial.setDebugOutput(true);! Q) {2 F7 }+ i2 c, M& r+ j2 v. \
- Serial.printf("Update: %s\n", upload.filename.c_str());
0 ^/ Z2 D2 O6 Q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' {; f# h* B+ ^. T; ~$ M S - if(!Update.begin(maxSketchSpace)){
) l( O% P+ x. E1 b; k& b0 S - Update.printError(Serial);/ A6 V& w! O% }" s/ W) n2 P" j: e
- }
6 W& r. j# [+ m& S+ d - } else if(upload.status == UPLOAD_FILE_WRITE){( I+ A T+ o' Q; t; | f( |
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 ]* {5 W' @: @. U1 Q6 C/ }+ R# G$ ` - Update.printError(Serial);+ t: i8 l; Z0 `0 V
- }9 ? O) @% |7 r r
- } else if(upload.status == UPLOAD_FILE_END){3 e4 n& u; Z6 s. O1 i* F# i8 m
- if(Update.end(true)){' b) R( P% \+ g' S
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- V3 Z- i% l1 S& P+ K x& X
- } else {
' ` l: v! i/ L9 r6 l5 H% P5 b - Update.printError(Serial);
L+ A( ~! t0 b7 P: J2 c& ~ - }
( A( u1 c2 r6 g5 K6 Y - Serial.setDebugOutput(false);
0 B: ~+ _! M& ?3 O - }" ?4 S* ?+ ^, A1 n
- yield();( J& ]- x# D* s# v# Y
- });8 k# t' L) E+ G0 W( f6 x: L. f
-
8 ~8 L5 k: S: P1 j3 A" Q! h9 T - digitalWrite(2,0);" `0 X0 z& J6 M
- mainAction();
8 `* O& i7 M7 U8 {; h - if (digitalRead(0)){
) Z% T$ ?6 C+ X - ESP.deepSleep(0);* x. X4 F7 {0 ^ ]. q
- } else {
! F' M5 r! _2 n4 H- e; M/ K( L - server.begin();! r. ~5 ^' }. ]- G9 |: a5 k
- }" H: R- ^1 q Z7 R% z; g
- }
/ U' l$ h5 I# G' Z1 j \* ^ - void loop() {
- z7 \+ n, F v9 [ - server.handleClient();5 h! Z% L1 ?1 T( w& J/ r2 v
- delay(1);
% x/ o3 f* {7 V7 t7 v - }
$ U/ e4 {" F0 T) ]+ o- }+ Z/ R - String doGet(String url){
, ~* U+ p; d- C - if ((WiFiMulti.run() == WL_CONNECTED)) {
! Q$ a4 Y d5 J/ U% K4 r6 h - HTTPClient http;
8 W; F. d) H9 S; G& w# }( I: O - Serial.println("[HTTP] begin...");1 E2 |& G) _. w# A! R9 G# [- \/ w
- if (url.startsWith("https")) {& T: L5 E, c. P6 | n; b8 {, o
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' \* x/ K4 S$ ?7 R - } else {' ~) q5 x T* l; @
- http.begin(url);
( ^/ k: R( P. X% P4 Y8 z, s - }7 j% u5 |4 B. Y- M/ C$ k
- Serial.println("[HTTP] GET...");* ` F' f( |# c; c- X: ?
- int httpCode = http.GET();% C. C: r' u7 P% |2 S+ N
- if (httpCode > 0) {
& _0 L- ?$ c; t4 i. [! j - Serial.printf("[HTTP] code: %d\n", httpCode);
0 [# o" }' `6 t5 G1 f, w6 _ - if (httpCode == HTTP_CODE_OK) {' ]& F# f4 Q5 ]2 @: \# H
- String payload = http.getString();
' b- G% s0 Q7 n. a K# [# w - Serial.println(payload);& O0 G6 i* R+ ]! l% O. l I
- Serial.print("\r\n");2 E3 X* O9 O3 a1 n
- return payload;
$ M& I2 @/ y$ x' h/ Z - }
* s# @- b I/ N+ U/ D- G - } else {
9 w6 I: X- b7 e! u - Serial.printf("[HTTP] GET... failed, error: %s\n",
2 V1 U8 o' I" q" j& u+ U - http.errorToString(httpCode).c_str());
|& b, F; w% f' r) q - }
5 c2 \+ O2 E) {; {( Q( x - http.end();, f1 A' r3 g* { H2 |
- return "";+ P- B3 G Q8 ?/ }
- }/ S: J$ R8 e& Q# L: E5 o, d
- }! F6 V8 F! [6 ]- Y1 S9 P) x# X8 g
- void mainAction() {
6 V2 ~ r& k1 G; N' G9 d/ p9 ?% O - // 发送请求. x! B7 o8 c$ P7 O9 K
- doGet("http://google.cn");
$ C7 _& k6 S; f; ] - }7 K* J8 _0 y; r; C
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