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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. ?* K/ Y* X- #include <ESP8266HTTPClient.h>
9 l u' p3 D/ E$ ^: F/ G - #include <ESP8266WiFi.h>
/ X' k7 K) y! K/ \ - #include <ESP8266WiFiMulti.h>& g9 }/ a& U/ T1 l' t. P' f' d
- #include <ESP8266WebServer.h>
2 t; w' x" a: G" n$ k5 M - #include <arduino.h>0 e- S9 E. ?: f
- ESP8266WiFiMulti WiFiMulti;2 l8 [* b: u/ z, y( W6 m
- ESP8266WebServer server(80);
; e! r! \7 r7 O3 ?$ k - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ i0 v1 E. Y0 e
- ADC_MODE(ADC_VCC);( A d" U3 i8 L5 J8 ]2 G6 I+ z
- void setup() {) u1 i! S9 b/ o& u* q7 t; h, q
- Serial.begin(115200);8 K. i5 E+ s; w# k7 W
- Serial.print("\r\n\n");6 G( M* r& J1 n* C' j" ^( V
- pinMode(2,OUTPUT);1 x7 H* `/ C6 o
- // WIFI
% K) p9 C( @: b" T/ Y - WiFi.mode(WIFI_STA);
5 R6 m. d+ \: c% I# s4 { - WiFi.hostname("Sparkle");: M# K* v8 T$ {8 v2 ^+ N
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 z; P9 Z, @) G% x3 j1 b# m - int tryNum = 15;" ^5 t# `+ M/ b2 H+ ?/ U) H8 I) I! ~
- Serial.print("Connect WiFi");5 g+ r7 [7 b* V- e8 A1 u
- while (WiFiMulti.run() != WL_CONNECTED) {
# T# M& ~) |2 @8 n' J" [2 c - digitalWrite(2,0);* t% p4 Q! ]! S+ j9 V- t) m* z2 O9 d
- delay(200);, [- z1 M+ p( N: b3 N3 v
- digitalWrite(2,1);. w4 P% _8 Z2 \8 b: a/ _
- delay(300);
Q/ o- r2 ?8 n$ [; r5 ^ - Serial.print(".");. |0 z: `: ^6 C- R) q3 v6 d
- tryNum--;% G7 ]8 a5 J9 ^0 u+ R% p7 d l9 _
- if (tryNum == 0) {* q1 T/ g8 s$ c$ U
- // 1min9 N- u3 H" W8 ]
- // ESP.deepSleep(60e6);
+ n; J5 g! C, Y - ESP.deepSleep(0);
3 ~$ u# Z6 a" D5 h* v$ T - }
9 r) X7 E. q$ o& ^ g- {; S$ L; J - }
* F; }' u! N6 k - Serial.print("\r\n");: q* b; t6 m, ?6 C3 ~
- digitalWrite(2,1);
& G( Y, R( |/ ]: U$ j' \; k. r - Serial.print("IP address : ");3 t, t% k& r' ~; ^: q) ]+ v
- Serial.println(WiFi.localIP());: N% S9 g. E5 s( w2 _
- server.on("/", HTTP_GET, [](){
- d. `" E! b2 M, @/ x: M0 c - server.sendHeader("Connection", "close");
, u& O% b9 C7 u3 _ - server.send(200, "text/html", serverIndex);7 T+ }# u6 J8 h4 g& x' H- I
- });
& `# u' }1 e6 W; a( ]# c# X - server.on("/update", HTTP_POST, [](){
% `+ Q6 S. Q2 m8 `+ J% l - server.sendHeader("Connection", "close");( X4 X5 J( J! ]8 o
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 k- D/ c4 v$ n5 h7 D7 [ - ESP.restart(); X: z" _, u$ @1 u* }5 X' W
- },[](){
9 J M w5 e# n# L, ? - HTTPUpload& upload = server.upload();) M* K; \0 Y6 @! }1 m. _- {
- if(upload.status == UPLOAD_FILE_START){
5 w q% J; e) y- Q2 q - Serial.setDebugOutput(true);
0 B, E0 g q& k9 ^2 W% l - Serial.printf("Update: %s\n", upload.filename.c_str());
0 ^/ f5 x! G8 Y" J3 Q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 v% u3 U0 V5 e( ]
- if(!Update.begin(maxSketchSpace)){: A0 H; z2 [5 A7 C/ a5 r7 V. {$ m
- Update.printError(Serial);
8 v: ?0 o$ W, |$ O - }
4 z% w/ M5 [2 a' s+ T - } else if(upload.status == UPLOAD_FILE_WRITE){$ F8 P |/ b0 k) \/ h
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 ~: E+ i. h3 l) ~& W* S( } - Update.printError(Serial);) J1 h, ?; Z8 ]1 W% \
- }8 [% {7 o/ ~8 r3 M9 |/ A
- } else if(upload.status == UPLOAD_FILE_END){
& q* A" x% I$ Y e9 h2 S - if(Update.end(true)){
% z( X9 i, l3 m! R: E0 ]9 V: ~8 X7 Q+ m - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ p' e7 B+ K& L% n8 N% m# U* V
- } else {$ _+ |; Q( Y# t5 q
- Update.printError(Serial);
9 \, x9 \+ u3 t+ B, y - }
' M8 f# f6 g7 o1 Y, [ - Serial.setDebugOutput(false);% |$ r5 I4 a# Z9 z/ a
- }
$ O& ~9 {* h! T, z2 m3 m. Q, S - yield();9 [1 D5 d2 T: @3 p) u; c% l/ R
- });
9 c+ y" T6 H5 B6 D - " i6 {/ v, v$ K: E
- digitalWrite(2,0);4 n! g S( J! L: L ?2 n
- mainAction();4 N, S( P6 F/ R- @& ^* [5 B
- if (digitalRead(0)){
8 J' O+ n9 ` a5 {- {6 S! w% b1 a - ESP.deepSleep(0);
$ @) B2 q6 ^/ M - } else {
) E& x- ?7 k. i5 W! t f% b9 d0 u1 A - server.begin();
" L$ ~6 I% T' y+ _# A - }( B2 u/ [' J; x" ]0 ^
- }) C" A( w3 }% A- j3 j+ @/ U
- void loop() {6 x6 h. F% K; M+ n' ]% h1 o o' o5 `
- server.handleClient();
" O' m2 U1 G! G - delay(1);
# G k* O- }: [4 @$ D* m - }% n! @. o+ R- D- J: C8 i
- String doGet(String url){) e: y4 R! E; Y$ w
- if ((WiFiMulti.run() == WL_CONNECTED)) {! K h$ |" I+ b
- HTTPClient http;. q8 Q* O1 [6 p- m
- Serial.println("[HTTP] begin...");
4 r2 \0 _; T; V2 L - if (url.startsWith("https")) {; J3 ]8 O9 @$ H& X8 Z) G6 ~; S
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 o. P- g2 {7 d
- } else {: q4 Y$ o) S0 M" h+ m0 \
- http.begin(url);* t- \* B" [ C! k, t8 p
- }% b0 A! a% Q/ w2 U" E
- Serial.println("[HTTP] GET...");# A2 e3 B" `" \! O; ^
- int httpCode = http.GET();' p* \1 b0 R# P& {- P) H2 O8 S
- if (httpCode > 0) {
F6 U1 o: H" n% c7 D - Serial.printf("[HTTP] code: %d\n", httpCode);
# {' ~! A! `* z* I; w+ x% @ - if (httpCode == HTTP_CODE_OK) {% J q1 i+ [: d+ F5 M* `
- String payload = http.getString();" W/ A8 K: O. ^* Y2 s% L" ]' f% n
- Serial.println(payload);
3 y, s6 F5 C, j3 B. }" r1 G - Serial.print("\r\n");
# m0 a- q0 c' j - return payload;
0 k% Q' G% H' ^! B' T# G - }
) I# w+ X& p. n; p: a - } else {
% M8 U6 q2 f2 n7 S% a) a- e - Serial.printf("[HTTP] GET... failed, error: %s\n",. }' x; _' c7 \# l
- http.errorToString(httpCode).c_str());' D/ F. n- Y$ i7 {
- }
+ g0 ]; {0 y4 S# a8 u3 A - http.end();
* K3 e" A2 i" T5 a3 K/ ]/ X! Q' p - return "";" d5 h1 o2 e0 K- C: Y" X; u0 \
- }
4 A, [ U2 N! d. e% u$ [ - }
7 H- T6 \, r2 g& k' q9 } - void mainAction() {# O* }: U+ D0 W5 T* e5 w
- // 发送请求
2 Q. B% b, C, G7 `1 X6 J4 M - doGet("http://google.cn");: S% V0 T( h T, }3 ?4 x# R' I
- }8 M4 `' R. g# E& z
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