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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)
6 ~3 l3 U; M: W; x- #include <ESP8266HTTPClient.h>. m. _6 Z `8 @
- #include <ESP8266WiFi.h>
8 \; R3 s8 E$ S - #include <ESP8266WiFiMulti.h>
. n% r4 s- x8 ~' Q2 g7 Z$ X0 V - #include <ESP8266WebServer.h>
, y% J( p$ g I* k; j9 C& i! A' v - #include <arduino.h>
- t/ D Z7 d, y" O, {5 c9 \ - ESP8266WiFiMulti WiFiMulti;
& V+ C% i+ X3 d8 B; Z+ v - ESP8266WebServer server(80);
: s3 E9 C1 m9 F- d+ Q0 n$ ^& i - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ q* A! c' ^/ O f. A4 p4 X - ADC_MODE(ADC_VCC);
; o0 |' f. J( D# Y( | - void setup() {
$ O# e- N9 e) J7 s - Serial.begin(115200);( C6 G. ?7 C" A: H) r" Q% h* O
- Serial.print("\r\n\n");
/ ?3 }* ] J( O) v/ B2 w+ N - pinMode(2,OUTPUT);
% H O, `/ X! h+ T. M- g - // WIFI1 m& T+ t' i5 x0 y4 M3 l
- WiFi.mode(WIFI_STA);
/ f4 N {* R" q. ]1 R7 {8 g8 j' | - WiFi.hostname("Sparkle");" w# J. D+ `: h# M; f, @4 K
- WiFiMulti.addAP("wifi ssid", "wifi password");
' K* Q: Z+ f8 W Y3 T' d1 I - int tryNum = 15;
* y% T3 _! k$ P: J: d8 B2 M - Serial.print("Connect WiFi");
. _( a+ q y7 N7 j0 _% { - while (WiFiMulti.run() != WL_CONNECTED) {3 } k# O& Z' W, u- }# j
- digitalWrite(2,0);) `5 O% X- D& F
- delay(200);
) r+ X6 O. o% D @* r% ?0 H& f# a - digitalWrite(2,1);- _6 a9 f+ I" w. S# ]- s
- delay(300);
X- S: Q# [3 a" E8 K C - Serial.print(".");
m; V6 X6 X) I5 x- I - tryNum--;! D5 x% C1 p& e
- if (tryNum == 0) {
% V3 p* p) T7 X) n - // 1min9 a5 w0 T5 T% {: u1 @$ s
- // ESP.deepSleep(60e6);# ^: W6 Y `+ }$ q
- ESP.deepSleep(0);6 M+ @. L) e7 Z% t7 v9 d
- }' T" q. A# y [
- }7 x* F7 Y8 }$ H: Z8 D
- Serial.print("\r\n");) ]% w* k; S! N; D' |4 u9 G' L
- digitalWrite(2,1);
+ |3 [: ^% c: j0 [# f - Serial.print("IP address : ");7 t& a$ q# A7 _1 t& J; k9 Q
- Serial.println(WiFi.localIP());/ r/ w# v7 i: P- q+ D8 C* W
- server.on("/", HTTP_GET, [](){
, I. s6 L' u" J6 U+ R6 Z1 h - server.sendHeader("Connection", "close");
/ Y( L& W6 h/ B$ ?/ N# N - server.send(200, "text/html", serverIndex);$ D8 X* Z; U" B' f
- });
( L. `% L8 ^' m) q( E4 r - server.on("/update", HTTP_POST, [](){
. {2 k& `! P! l' _6 r4 H5 a/ u5 [, _ - server.sendHeader("Connection", "close");
1 [* J% P. k% t- c# o" B4 c# H. | - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# C( v: t* m* n) X4 p1 Q
- ESP.restart();& y0 u# `, j5 J+ r# z
- },[](){
3 H2 B& _; A5 I4 G - HTTPUpload& upload = server.upload();
( _ | h( t& L' p7 ]/ l - if(upload.status == UPLOAD_FILE_START){
' Z! k5 k5 V* B0 b4 ` s7 k* ? - Serial.setDebugOutput(true);
: X( i- M( U9 m- G5 r- \8 t - Serial.printf("Update: %s\n", upload.filename.c_str());* z( p6 C9 O" s
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" ^3 F. S: a7 I/ \+ r6 F - if(!Update.begin(maxSketchSpace)){ z, r) n& Q1 }* E4 {( I* W
- Update.printError(Serial);: R- m; d. b# q5 v; b. F7 m
- }, `1 n' J, G6 h! B0 E
- } else if(upload.status == UPLOAD_FILE_WRITE){
9 @' p; M6 w3 }! L - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" j$ i8 w9 l* y o" C. M4 i
- Update.printError(Serial);& b: t& B6 c* \! y
- }: h2 `) \# S* f+ |
- } else if(upload.status == UPLOAD_FILE_END){
4 E0 D4 i' c# {% D% K0 O - if(Update.end(true)){
4 E0 b. ~: d; z# l - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; U* [( \9 L* Z9 A9 ]
- } else {
0 o6 H+ L' t; \% I4 ` - Update.printError(Serial);) V7 w9 N7 H* S8 ^# _9 @
- }
# G5 q* g7 q3 h! B! d; R - Serial.setDebugOutput(false);
: B2 Z) D3 s9 a t - }3 T# T/ D: ~' ]# _8 Y s; A
- yield();
* F7 |2 P% y5 \8 ?! m - });
- k: z/ Q. c7 l- _: T) j9 y x - 7 U, J7 V" P& B+ x
- digitalWrite(2,0);2 Q9 f8 n+ U s, F
- mainAction();
! j: H# I# U0 O- Q1 m" S$ @9 T3 c - if (digitalRead(0)){
1 B( c( [& {3 c" T - ESP.deepSleep(0);. }$ L/ I5 A% K8 n0 U
- } else {+ e* t2 s! V, ^, F- g, \0 B
- server.begin();' P2 R9 T% R# V) ]( N1 J
- }
; l0 T4 X. ?7 G$ q$ X* e - }( V4 C* \# M& D
- void loop() { \3 H" ?$ H, C0 w( O% r
- server.handleClient();
$ l1 x3 E& ^1 U4 ] - delay(1);9 {) U) {, k' z' G7 K9 N
- }; D, ]5 U) |7 d2 a
- String doGet(String url){, ^# r) n1 H# s% x# c
- if ((WiFiMulti.run() == WL_CONNECTED)) {& E$ ^( s; _) @' ]3 _" o
- HTTPClient http;2 X$ d& a* u, S" R, j8 {
- Serial.println("[HTTP] begin...");
\, K; P" T9 D2 N- O - if (url.startsWith("https")) {
% O, `9 X8 |- n% q. s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. h3 p5 Y$ E$ O% y7 v% ~/ A0 `
- } else {9 o0 A. J) E: [: h' y; _
- http.begin(url);: q2 ]% }7 F$ Z# G" f3 I s. C- \
- }& Y$ T! r S% O) ^- Y7 x: y; ~4 P
- Serial.println("[HTTP] GET...");
4 @3 i* _; C0 g - int httpCode = http.GET();
, y- A- p) F/ a- T - if (httpCode > 0) {
D9 _! j- v3 S6 d* x - Serial.printf("[HTTP] code: %d\n", httpCode);; o) j5 r' C4 J4 O+ U
- if (httpCode == HTTP_CODE_OK) {
7 e% h# q2 [ A& l# w, s# N - String payload = http.getString();
2 o1 i4 W% _9 h' A - Serial.println(payload);
) |9 J* z {& @9 b( d - Serial.print("\r\n");
: H% c& I. X- {# t3 c - return payload;
$ Q: Y) H4 A4 ?" R( ` - }6 N: a8 ^4 Y& b
- } else {0 s- T8 Q- X! U# F, \: [ s' T
- Serial.printf("[HTTP] GET... failed, error: %s\n",, M8 q3 f0 y( ^5 F( Z9 J$ ]# |! g
- http.errorToString(httpCode).c_str());( W: ?, B5 V9 N: u
- }
+ G* k. T" d8 z' t/ l - http.end();
7 K8 X5 V- ~; x, C7 x o' j - return "";
' J8 c* j f& ?" }' ` - }
& ~+ A( s1 [" P0 ~. p - }: b- v7 H1 U: Z* N
- void mainAction() {1 | T( Z: a5 b( E
- // 发送请求' o/ I5 ^3 B1 V
- doGet("http://google.cn");
: d( v3 l# S5 U2 M2 t; n& E* S" V9 \. g - }
1 T" Q8 q1 @8 c% O+ i# ` ]
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