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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)8 e: W+ d: m# l& {
- #include <ESP8266HTTPClient.h>
/ U; g$ f. u5 p! {6 ?! A - #include <ESP8266WiFi.h>
9 b& |+ j) M& |; h - #include <ESP8266WiFiMulti.h>
0 R2 @& Q2 k% f. G6 B8 Z - #include <ESP8266WebServer.h>& X' x+ U F8 T8 K! @* _5 ]
- #include <arduino.h>
4 S% C6 g* q" V; U1 A! K0 G - ESP8266WiFiMulti WiFiMulti;+ ]! A, }7 D- w+ {* S5 ~* V0 w" \8 m
- ESP8266WebServer server(80);' h$ B# e5 N) u
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, H$ @7 ], \: ]+ K0 u( ?& ? - ADC_MODE(ADC_VCC);0 z" a5 w+ H- l) E0 |$ I4 d
- void setup() {
* t$ g9 H% A1 ?8 L - Serial.begin(115200);, C/ T( @) m+ p* U- U6 D' I
- Serial.print("\r\n\n");0 z8 C8 b# x& q, e- ]# j- D( }. l
- pinMode(2,OUTPUT);1 s: s$ r8 ] q
- // WIFI
5 Y! z4 j9 x4 f2 \: `6 Y% z4 }" L - WiFi.mode(WIFI_STA);; ]* \1 U: o3 z" K7 M, C% Z
- WiFi.hostname("Sparkle");
2 Y" r" J4 u! D - WiFiMulti.addAP("wifi ssid", "wifi password");
( v; f; t0 J+ c2 P5 P; i% j - int tryNum = 15;
! z7 j. D% A% E3 f W - Serial.print("Connect WiFi");! r% m" H( Q% f( G B( v
- while (WiFiMulti.run() != WL_CONNECTED) {* [1 Q7 P. F' }' U9 T# z7 j/ p
- digitalWrite(2,0);
+ t: a+ }& X3 G" ?* ~; u% z - delay(200);! z% w, M! D1 e/ v0 M
- digitalWrite(2,1);3 o' b+ S' [- @9 t
- delay(300);
6 Z L0 c1 b e0 A/ m. l8 \ - Serial.print(".");: l: s- Z. p. U" s4 m0 @. Q" _
- tryNum--;* |% E0 q! i, ~( i i5 } G
- if (tryNum == 0) {
0 F: c/ x* u4 ^& k6 G - // 1min
4 @8 |$ g0 _' F5 Z - // ESP.deepSleep(60e6);# P; g5 q) i* T" E" O
- ESP.deepSleep(0);
% M* s- {- j L* m! X0 T - }
' Q/ Z6 P( t$ Q" D: i# }1 G9 w' w - }
% E9 A- f! W! b9 \' d3 N. v - Serial.print("\r\n");
0 z+ d) \8 k9 V3 Z7 d3 D - digitalWrite(2,1);
( E& K$ p9 V5 C3 t- a - Serial.print("IP address : ");) t* p" W( j; N. E- p0 Q
- Serial.println(WiFi.localIP());
9 q; O! t8 P. e2 a4 Y) Y/ l - server.on("/", HTTP_GET, [](){
3 a0 W8 x3 R6 z9 f - server.sendHeader("Connection", "close");6 n4 ^$ M: | _) ]( m% L( i
- server.send(200, "text/html", serverIndex);
: g! h8 M. J- C; s) I' h. [" r0 L5 x - });
: e5 G5 ]$ x, c- d8 F - server.on("/update", HTTP_POST, [](){5 z; d9 d. a, c! q( r( w0 l
- server.sendHeader("Connection", "close");
8 d' I4 B& ^3 r0 |/ d2 H - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); [9 K* O0 J( ]# c! Y$ z
- ESP.restart();
/ A7 Z& _/ E4 D# P, T; G1 i - },[](){
/ o9 G9 B$ V- i' ~ - HTTPUpload& upload = server.upload();
2 Z H# i* j5 V7 h6 v - if(upload.status == UPLOAD_FILE_START){
$ I2 B8 h; Y3 o' L - Serial.setDebugOutput(true);" V! g$ U/ U a" x) ^' e+ a
- Serial.printf("Update: %s\n", upload.filename.c_str());: `) `1 d2 }: R
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 J1 u# c$ O0 q! U+ s* R: Q$ F1 z; Y - if(!Update.begin(maxSketchSpace)){2 T7 a/ B3 E! N3 F" b; A
- Update.printError(Serial);% I/ |8 D6 g/ G. ~( P) ?8 S
- }5 g& o" }. H# z" E k* ^
- } else if(upload.status == UPLOAD_FILE_WRITE){9 ?/ i& ^: k/ G \8 n5 }
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 W* D9 m$ a0 Y+ B9 |8 B - Update.printError(Serial);
1 b* Q9 b6 y2 N$ r) J' } - }, }7 f$ r& S3 `9 q
- } else if(upload.status == UPLOAD_FILE_END){4 {/ T1 N. L, G
- if(Update.end(true)){2 ~5 ~* z, b5 q# B9 E
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 G9 Y6 n* P4 b! C3 \ T - } else {% V0 ?. A4 U$ y- T
- Update.printError(Serial);% ]) d( B7 o% {2 p# U7 }
- }2 b6 |0 H9 t4 V+ i& H, D
- Serial.setDebugOutput(false);! L* p3 {% K2 m- P$ a
- }
: m$ A; F/ u# ]& R, k% N9 H - yield();2 g5 x% p; E7 H/ M
- });
2 F8 O; R2 u2 s1 L0 v -
0 M* H$ H6 k2 n) z, D4 C - digitalWrite(2,0);
: c( R" y1 I* B - mainAction();2 X% ?2 j$ Z1 W0 t) y
- if (digitalRead(0)){. g8 M1 S5 f2 s( m: x; R
- ESP.deepSleep(0);
$ T: L8 h# Y# [1 I, N9 L" d$ M - } else {
, d I$ v7 K5 `# u% I) E6 D - server.begin();
$ ]- f- V2 m5 O4 u5 @ - }( w) k! J6 i! ^" A8 q7 c
- }
; F j! p; N2 w* u/ ?6 H - void loop() {
5 o1 ~9 y0 N2 l% D - server.handleClient();# q( c0 N$ D3 ?% w& k+ [( O
- delay(1);
: K5 Y( i% h: g - }: J, M, s+ {) [- l9 h: ^$ X
- String doGet(String url){
' w) q7 j2 }4 [5 l, ~ - if ((WiFiMulti.run() == WL_CONNECTED)) {, ~# g! @* L0 p8 z9 u @' a
- HTTPClient http;
& y% H8 W* F9 L( a0 F7 Q. m4 j* {7 d - Serial.println("[HTTP] begin...");% f* G4 w' G* h7 J
- if (url.startsWith("https")) {
' A9 Z' f& G0 W" s+ J - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 C: d: L2 _5 R5 {2 M8 P' r) V - } else {
. I9 l5 Q \# [5 d6 K - http.begin(url);
1 g5 U) X2 G" U9 w - }" Q( x8 o+ B# z$ b' V
- Serial.println("[HTTP] GET...");
2 G- N4 N, L# U% G; _ - int httpCode = http.GET();. V' c% U" P* _& Y }
- if (httpCode > 0) {
+ @; \# F" }& E& I" A - Serial.printf("[HTTP] code: %d\n", httpCode);/ e: V+ U! U7 ~' J% U/ }
- if (httpCode == HTTP_CODE_OK) {8 E2 B: y0 N6 l, \
- String payload = http.getString();
# i; |; R. d( E$ R' m% p - Serial.println(payload);
0 ]5 Q) ?6 `/ r9 H B) ]3 d - Serial.print("\r\n");
3 J: ?- i5 R2 w; X3 \6 A& [ - return payload;
: H, o6 `! W5 j+ Y! [9 W2 Y( p# J7 H - }3 l& `0 {9 Q9 {3 u w1 C6 H
- } else {% y% U) r/ V G
- Serial.printf("[HTTP] GET... failed, error: %s\n",
b" L& z/ y% ?* `$ Z! O - http.errorToString(httpCode).c_str());6 S* m( }9 P3 v- j( U. z8 q
- }
7 [' l: K! G9 J, P5 X1 u - http.end();# Q, y; u$ u5 [0 A- R& F/ I0 K
- return "";
7 o6 Z* J9 C. v# c( ?4 P7 f' e5 g - }
& y0 n/ g! E7 \) z - }) A0 G3 l6 ^3 t7 d: ~( }
- void mainAction() {
" h& y5 t$ D0 F" @ - // 发送请求
* y, x6 t: O( V" g - doGet("http://google.cn");
2 b: ^/ |; c7 j9 `0 B9 V - }3 r1 N4 ?; [% N* F* y& D6 P
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